flick off

verb

(slang) To insult (someone) by showing them the back of one's fist with the middle finger extended.

He flicked off the light switch before leaving the room.

意味（1）

(slang) To insult (someone) by showing them the back of one's fist with the middle finger extended.

意味（2）

(vulgar, slang, transitive, intransitive) To masturbate by flicking the clitoris with one's finger or fingers.