USA, 1927—denotes male vigour, especially sexual—with wordplay on ‘penis’—interestingly, via an alteration of the Latin diminutive ‘pēnĭcillus’, denoting literally a little tail, hence a painter’s brush or pencil, ‘pencil’ is derived from Latin ‘pēnis’, denoting literally a tail, hence the penis
The following slang expressions have been used to designate the mouth: ‘box of ivories’ (also ‘ivory-box’); ‘box of dominoes’ (also ‘domino-box’); ‘bone-box’; ‘potato-box’; ‘potato-jaw’; ‘potato-trap’; ‘kissing-trap’.
Australia and New Zealand, 1939—to be in good spirits, ‘chirpy’—the image is of a boxful of chirping birds (cf. the extended form ‘happy as a bird in a box of birdseed’)—New-Zealand variant ‘to be a box of fluffy ducks’, also ‘to be a box of fluffies’
British, 1907—denotes considerable talent or ability to grow plants—in this phrase, the adjective ‘green’ refers to the colour of growing vegetation—1921: ‘green-thumbed’ (adjective)
Australia, 1887—a forlorn hope, no prospect whatever—may refer to the British convict William Buckley (1780-1856), who escaped from custody in 1803 and lived for thirty-two years with Aboriginal people
‘butterfingered’, adjective, 1615: having a tendency to let things fall or slip from one’s hands—also (English, regional) unable or unwilling to handle hot items with one’s bare hands—‘butterfingers’, noun, 1835: a butterfingered person, a person with a tendency to let things fall or slip from his or her hands
UK, 1925—the verb ‘Adam and Eve’ is rhyming slang for ‘to believe’—there is no truncation, contrary to the usual rhyming-slang formation (cf. ‘scooby’, rhyming slang for ‘clue’, which is short for ‘Scooby Doo’)
UK and USA, 1816—to tell a long, far-fetched story—of nautical origin? (perhaps alludes to making ropes from lengths of yarn on board ship: the men would have told one another stories while performing this long and tedious task)
1747—a small outlay or risk ventured in the hope or expectation of a significant return—a metaphor from fishing, in which sprats are used as bait to catch larger fish—in early use with the words ‘salmon’ and ‘herring’ instead of ‘mackerel’