Top Definition
Receiving a blumpkin (taking a shit while you're getting some dome) while driving. This can be done either into a bed pan or just onto the seat if you really don't give a shit.
Rebecca gave you a speed blump last night? Was it in a bed pan or did you just let it fly free?
#blumpkin #road head #head #shitting #oral sex
by MrBeaverK February 23, 2010
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