(a.) Having fat buttocks.

abruptly adipose ample at once back ballot bang beamy become overweight beefy big-bellied bloated blowzy blunt bosomy brawny bump burly busty buxom campaign for canvass cast cast a ballot cave cave in chink choose chubby chuck chunky clap click clink clop clump clunk collapse corpulent crump cushion dash decline definite definitive deposit direct directly distended dive divide downright droop drop dull thud dumpy ease engross exactly fall fat fatten fattish fleshy flick fling flop flop down fluff flump flump down flush forthright founder full full-bodied gain weight gather flesh gentle give way go down gross hastily heavyset hefty hippy hurl impetuously imposing impulsively kerplunk knead lapse laxate like a flash like a thunderbolt limber limber up loosen lower lusty mash massage matter-of-fact meaty mellow milden mollify nose-dive obese of a sudden on short notice overweight pad parachute pat patter paunchy pinguefy pitapat pitch pitter-patter plain plank plop plop down plumb plummet plunge plunk podgy point-blank poll pop portly potbellied pounce pounce on pounce upon precipitantly precipitately precipitously precisely pudgy puff up puffy pulp pursy put down put on weight rap relax right roly-poly rotund round roundabout sag select set set down settle settle down shake up sharp side with simple sink sink down skin-dive sky-dive slap slouch slump slump down smack smack-dab smash soften soften up sound spang square squarely squash squat squatty stalwart startlingly steatopygous stocky stoop stout straight strapping subdue submerge subside sudden suddenly supple support surprisingly swag swollen swoop swoop down take a header tap tenderize thick-bodied thickset throw thrust thud thump tick tinkle tone down top-heavy toss tubby tune down tunk unambiguous unawares unequivocal unexpectedly unmistakable vote well-fed without notice without warning