silence / reticence

be silent / be reticent

(slang) a sexually promiscuous man, a playboy. Not considered pejorative, it is used as a comic comparison to ヤリマン (yariman).

sinking a ship

sink a ship

sink, founder

paperweight / (computing slang, figuratively) brick (an electronic device, especially a heavy box-shaped one, that has become non-functional or obsolete)

anvil

biker gang, outlaw motorcycle club; group of hot-rodders

analgesia