What's on your mug?

An excellent round of oral sex, predominantly (but not exclusively) referring to sucking a male appendage.

Was with the missus after work and we had a great time. Copped a stellar thumper that night.

By Pukas Grig V

A penis of significant length and girth: A penis whose size and weight are substantial enough that, when lifted and then dropped over a tabletop, it produces an audible "thump."

"He was known for having a thumper that would make anyone's jaw drop."

By Kowallace

The name of a thickly made stripe that would blow your head off, and ensure your tuned head is topped up.

That’s it, someone get a thumper out now before i kick off.

By Cool memes

A massive penis

I’ve got a thumper

By abdullah_milo