nugget

collop, medallion, noisette

nosh, snack

appetizer, canapé, hors d'oeuvre

bit, chew, crumb, dab, dribble, driblet, fleck, hint, mote, nubbin, particle, pinch, scrap, scruple, shred, smidgen (also smidgeon), snip, snippet, speck, spot, sprinkling, suspicion, tittle, touch, trace

dash, drop

lap, lick

gulp, swallow, swig

bead, drop, globule

block, body, bulk

particle, piece, portion

bit, chip, crumb, granule, morsel, nubbin, patch, scrap

ace, dab, dash, driblet, drop, fraction, haet [chiefly Scottish], halfpenny, ha'penny, iota, jot, kenning [chiefly Scottish], lick, minim, mite, modicum, nutshell, ounce, pinch, shred, smatter, smidgen (also smidgeon), spot, strain, streak, suspicion, taste, touch, trace, whisper, whit

bite, mouthful, nibble, tidbit (also titbit)

fragment, part, portion, section

chip, flake, shard, shiver, sliver, splinter

clipping, paring, shaving

smithereens