bumtweak 

the act of tweaking a persons nipple with the arsehole

ie..pj likes to bumtweak james nipples on a regular basis

bumtweak by michael b murphy May 24, 2008

bumtweak 

What it sounds like, a bum who is also a tweak.

"He has no ambition and is always on meth, this bumtweak needs to get a life."

bumtweak by phenos February 18, 2023