Top Definition
Acronym for Boner In Sweat Pants, originates from the Jim Rome Show on the Premier Radio Networks.
So I woke up this morning and had some major morning bisp.

I was working out with my new female trainer the other day and inadvertently got a big bisp.
#boner #hard on #sweat pants #exercise #penis #sweats
von DustyBottoms69 4. Mai 2008
1. (v) boner in sweat pants. Made popular by the Jim Rome Show.
When I saw that hottie doing squats at the gym I had some major bisp action going on.
#boner #rudder #woody #stiffy #pup tent
von bispmaster 3. Mai 2008
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