thumber bummer

when a guy tries to use his thumb to finger a girl with the intention of pleasuring her, but it backfires and she does not enjoy it.

Everything was going for smoothly for Larry with the girl of his dreams until he inserted his thumb into Tara's juicebox and produced no more than a thumber bummer.

thumber bummer by Harry Rose September 4, 2010

bumper thumper 

Derived from bible thumper

An automobile that:


* Is valued at less than $1000.00

* Is covered with more than a dozen bumper stickers preaching an ideal you disagree with

* Travels at half the speed limit and tends to linger between lanes

"I'll be late for work unless this fucking bumper thumper gets out of my way."

bumper thumper by AbnormalBoy April 23, 2004