chew, churn, secrete, taste, salivate, digest, latch on, absorb (nutrients), break down (nutrients), distribute (nutrients throughout the body), rumble (during digestion)

fart, pass gas, pass, eliminate, shit, pee, piss, poop, urinate, defecate, have a bowel movement, go number two, take a crap, take a dump, crap, flush (a toilet), go to the bathroom

seize, recoil, cramp, contract, scratch, tense, shake, twitch, sweat, perspire, stiffen, quiver, stink, smell, birth, snort, startle, pant, secrete, drool, tremble, dilate, exfoliate, ooze, absorb, blink, bead up, breathe, expire, yawn, extend, inspire, prickle, inhale, gasp, flinch, shiver, shudder, wince, quake, convulse, palpitate, cough, itch, ache, snore, exhale, exude, pulsate, sneeze, jerk (away from), wheeze, gnash (teeth), break out, flare one's nostrils, beat (heart), pass out, faint, hiccup, engorge, scab, release (hormones), tremor, spasm, flutter (heart)

heave, hurl, spew, regurgitate, gag, purge, cough up, vomit, barf, throw up, retch, upchuck, toss one's cookies, spit up, yak, ralph, lose one's lunch

bore, carry, rustle, splutter, pour, float, echo, rumble, race, overpower, transmit, cover, fade, drift, absorb, trickle, sputter, gush, flood, stream, spill, wash over, explode, intensify, muffle, amplify, loop, pulse, engulf, magnify, intrude, overwhelm, fizzle, silence, drown out, quiet, vibrate, throb, resonate, reverberate, crackle, resound, travel, deafen, lift the spirits of, course through, blow (in the wind), bleed (instrument sounds)

drop, pour, stain, bleed, spatter, splatter, spot, ink, dry, splash, ooze, drip, trickle, dribble, spurt, gush, flow, stream, spill, blind, cascade, pulse, pool, harden, bruise, coagulate, geyser, hemorrhage, clot, lose (consciousness/blood)