Wiktionary
get off on
vb. (context slang English) To be excited or aroused by; to derive pleasure from.
Usage examples of "get off on".
He was determined that I should get off on the right foot, and he knew how to go about it.
And if they know, and get off on it anyway, what does that make them?
It wouldn't do to get off on the wrong foot with Judith Niles—.