ガンガン · がんがん
- adverb, adverb taking と, onomatopoeia clanging; banging; booming; loudly
- adverb, adverb taking と, takes する, onomatopoeia throbbing (headache); pounding; splitting
- adverb, adverb taking と, onomatopoeia, colloquial fully; vigorously; hard (e.g. working); flat out