Top Definition
1. To hug someone
2. When your arm rubs up against someone else's arm (on purpose or accidentally, doesn't matter)

Note: May also be called an "arm fuck" or "arm fucking".
Girl: Are they dating?

Boy: Just because they have arm sex on a regular basis doesn't mean they are!

Girl: Oh, just friends then?

Boy: Say... can we have arm sex?

Girl: Ew, no.
by Throwtheflowers March 25, 2014

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.