A blowjob while on a bycicle, usually on a bicycle with two seats.
Me and Jessica Simpson were riding down the street on my bycicle ,and she grabbed my dick and gave me a blumper.
by bengalmans Unforgiving Nephew October 04, 2009
When a male is sitting on the toilet, taking a dump and a girl is giving a blowjob at the same time.
When trailer trash whores having nothing else better to do than having sex with their nephews
by Ezekiel November 11, 2003