(literally) for a dam to break and water to burst forth / (figuratively) to burst forth (e.g. tears, words, a crowd)

to become completely chilled

(idiomatic) to change direction (of policy, etc.)

to be evident / to be obvious / to understand completely

to hang up, to terminate a phonecall

(idiomatic, chiefly Kansai, slang) to stare or glare in challenge; by extension, to pick a fight

Alternative form of メンチを切る

tear off, rip off

bite off, bite through