have a hard-on for English

Meaning have a hard-on for meaning

What does have a hard-on for mean?

have a hard-on for verb

— (US, vulgar, slang) To have an irrational, or abnormal fixation or preoccupation with; to have a fetish (sense 3) for.

— (US, vulgar, slang; of a man or pubescent boy; in reference to the erect penis) To have a strong sexual desire for; to lust after.