doodly-squat

Từ điển WordNet v3.1 - WordNet Dictionary

noun

a small worthless amount
- you don't know jack
• Syn:
jack, diddly-squat, diddlysquat, diddly-shit, diddlyshit,
diddly, diddley, squat, shit
• Hypernyms:
small indefinite quantity, small indefinite amount