that made my balls stiff

A term said by Freddie from the British rock band "Queen" in a comedy skit. After gaining popularity on Instagram in late 2017, it has been broadened used as a term that can randomly be said to express any emotion really.

Could be used to describe amaze, or surprise without being the slightest bit 'homo'.

Phillip: How did you like my presentation Capri?
Capri: Wow Phillip, that made my balls stiff!