interjection
burst of laughter; roar of laughter
Slang interjection, abbreviation of 爆笑 (ばくしょう). Used online or in casual speech to indicate something is extremely funny.
See also: 爆笑 (ばくしょう)
その動画、爆!
That video is hilarious!
prefix
in copious amounts
Colloquial prefix attached to verbs or nouns to emphasize abundance or intensity, e.g., 爆食い (eating a lot), 爆買い (shopping spree).
週末に爆買いしてしまった。
I went on a shopping spree over the weekend.