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The slang noun arsewipe designates:
– (literally): anything used to wipe oneself clean after defecation; in later use chiefly toilet paper, or other paper used for this purpose;
– (figuratively): a foolish or contemptible person.

1-: Literal sense:

The Swiss lexicographer Guy Miege (1644-1718?) defined the noun arsewipe as follows in A New Dictionary French and English, With Another English and French; According to the Present Use, and Modern Orthography of the French. Inrich’d With New Words, Choice Phrases, and Apposite Proverbs; Digested Into a most Accurate Method; And Contrived For the Use both of English and Foreiners (London: Printed by Tho. Dawks, for Thomas Basset, 1677) [s.v. Arse, page unnumbered, column 2]:

ARSE, or the Fundament, le cul, le fondement.
The Arse-gut, le boyau culier.
The Arse-hole, le trou du cul.
Arse-smart, an herb, cul-rage.
Arse-wipe, un torche cul.
Arse-posse, culbute, culebute.
To give one an arse-posse, culbuter quècun.
Arsy-versy, à rebours, sans dessus dessous.

Pat Stacey used the noun arsewipe in its literal sense in Stacey’s Screen Shots, published in the Evening Herald (Dublin, County Dublin, Ireland) of Friday 9^th February 2007 [It’s Friday! weekend entertainment guide, page 13, column 5]:

Best U-TURN
THE INSIDER
(Channel 4, 7.35pm)
Jane Moore, opinion columnist with arsewipe rag The Sun ¹, explains why she has changed her mind about the negative influence of the media on young women when it comes to body-image. Apparently, Moore’s conversion came about after she witnessed the effect it has had on her teenage daughter and her friends, who aspire to an unhealthily skinny ‘ideal’. I wonder if Moore’s new-found zeal will extend to her persuading The Sun’s editor to remove the pictures of topless teenage tottie from Page 3 ²?

¹ The Sun (London, England) is the red top (downmarket tabloid newspaper) par excellence.
² A pin-up picture of a topless or nude young woman used to appear daily on page three of The Sun.

2-: Figurative sense:

In the following two letters, the English poet, novelist and librarian Philip Arthur Larkin (1922-1985) used the nouns arse and arsewipe to pun on the initials of R. S. Thomas, i.e., the Welsh poet and Anglican priest Ronald Stuart Thomas (1913-2000)—letters published in Selected Letters of Philip Larkin 1940—1985 (New York City: Farrar Straus Giroux, 1993), edited by Anthony Thwaite:

– From a letter to Robert Conquest ³, dated Hull, Yorkshire, 26^th April 1956 [page 260]:

What d’you think of Liz J. ⁴ getting 400 nicker to go and get stuffed in Wopland? I wasn’t in for it, o’ course. Good old George. And Arse Thomas getting the Heinemann ⁵. Oo the bible-punching old bastard.

³ Robert Conquest (1917-2015) was a British-born U.S. historian, poet and novelist.
⁴ The English poet Elizabeth Jennings (1926-2001) had been given the Somerset Maugham Award for foreign travel. The noun nicker is slang for pound sterling. Wopland is a derogatory appellation for Italy.
⁵ R. S. Thomas had been given the W. H. Heinemann Award, a literary prize.

– From a letter to Robert Conquest, dated Hull, Yorkshire, 20^th February 1962 [page 341]:

Our friend Arsewipe Thomas suddenly was led into my room one afternoon last week, and stood there without moving or speaking: he seems pretty hard going. Not noticeably Welsh, which is one comfort.

The usual American-English form is now asswipe. The following, for example, is from Never mind the b******s… swearing is good for you, by Brian Breacom, published in The Herald (Glasgow, Lanarkshire, Scotland) of Thursday 16^th January 2020 [page 14, column 6]:

Personally, I like the Irish word “bollox”, suggesting a wasteful miscreant.
I also liked the American kids I looked after on summer camp who abused each other with “Skidmark” or “Asswipe,” delightfully suggesting faeces connection.