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1.
A tranny prostitute who will perform any sex act. Used by D.C. pimps and usually with a word added.

Vannnie will do anything, she's a Beento5.
by Dreadxxx June 28, 2006
 
2.
n. A transvestite prostitute with wide experience and who will perform any sex act.

Somtimes beentofive, beentwofive or BT5.

She's a real beento5, there is nothing your imagination can think up which she won't do for you.

by BradW June 30, 2006
 
3.
A transvestite prostitute who is very experienced and who will perform any sex act.

Somtimes Beentofive or BT5.

She's a real Beento5, there is nothing your imagination can think up which she won't do for you.
by Brad Wigenz June 28, 2006