bumvelop 

The concept of bumveloping, i.e., 'to bumvelop', originated from a discussion of the pentration vs envelopment argument. Bumvelopment is defined as an act of envelopment specifically utilising the anus as a means. Key to the understanding of bumvelopment is that it is in fact an act of dominance in the same sense that penetration has traditionally been seen as dominant.

"I bumveloped the man, like the bitch that he was."

bumvelop by David Hogan September 18, 2008

bumvelope 

If a parcel has been delivered to you via clenched bumcheeks, it is said to have been delivered in a 'bumvelope'.

My sandwidge arrived in a bumvelope.

bumvelope by David Hogan July 20, 2008

Bumvelope 

An envelope full of roaches and bud scraps that is given to a bum

Where should I put this out?

Oh no, put it in the Bumvelope!

Bumvelope by Bleezy503 May 18, 2011