(simile) Extremely rare or scarce.

(US, of raining, pissing, etc) Heavily, copiously, with a great deluge.

(slang, idiomatic) To enjoy oneself immensely, to party.

(informal) Indulgent and pleasurable activities.

(neologism) An extension of the children's game of rock paper scissors, with two additional handshapes: lizard and Spock.

(US, of rain or other liquid falling, vulgar) Heavily; copiously (and often loudly).

(simile, slang) Very stupid.

An inability to think clearly and rationally.

Alternative form of leave no stone unturned

(simile) Extremely nervous.