adverb, adverb taking the 'to' particle, noun or participle which takes 'suru', noun
bulging; protruding
Mimetic word describing a noticeable bulge, especially of male genitals under clothing. Often used humorously or in casual contexts.
彼のズボンがもっこりしていた。
His pants were bulging.
あの俳優は
That actor is bulging in his swimsuit.