Dick backing 

when a man with an erect penis rubbs it on your back unexpectedly

I just got dick backed on the jetski

see that guy dick backing her ? that is so creepy

Dick backing by TripleA1 May 24, 2016

Dickpacking 

When a girl goes backpacking to «feel free», but actually wants to ride alot of dick without being judged.

I went on dickpacking this summer.

Dickpacking by Johnny Depp December 22, 2019

Dickbacking 

To have sexual intercourse with your friends boyfriend because you can't find your own

That girl is a slut, she is always dickbacking someone.

Dickbacking by MicDingo October 4, 2016