Top definition
when an exchange is made thrgh bumping into someone while walking. in order to keep from being noticed, usually done with secret or illegal things.
david: you got the money

nick: yeah, you got the "goods"

david: yeah, but we cant exchange here, we'll bump transfer in the hallway after 5th period to avoid detection
by the castrator December 13, 2010
Get the mug
Get a bump transfer mug for your barber Yasemin.