funny (adj.)

"humorous," 1756, from fun (n.) + -y (2). Meaning "strange, odd, causing perplexity" is by 1806, said to be originally U.S. Southern (marked as colloquial in Century Dictionary). The two senses of the word led to the retort question "funny ha-ha or funny peculiar," which is attested by 1916. Related: Funnier; funniest. Funny farm "mental hospital" is slang from 1962. Funny bone "elbow end of the humerus" (where the ulnar nerve passes relatively unprotected) is from 1826, so called for the tingling sensation when struck. Funny-man was originally (1854) a circus or stage clown.

Definitions of funny
funny (adj.)
arousing or provoking laughter;
funny stories that made everybody laugh
a very funny writer
funny (adj.)
beyond or deviating from the usual or expected;
they have some funny ideas about war
her speech has a funny twang
Synonyms: curious / odd / peculiar / queer / rum / rummy / singular
funny (adj.)
not as expected;
up to some funny business
Synonyms: fishy / shady / suspect / suspicious
funny (adj.)
experiencing odd bodily sensations;
told the doctor about the funny sensations in her chest
funny (n.)
an account of an amusing incident (usually with a punch line);
she made a funny
she told a funny story
Synonyms: funny story / good story / funny remark