The simple blend of spam and crappy. Often used to describe something truly grody that is endorsed by a higher authority or the majority.
My high school yearbook was so spappy this year.

My sister is dating the spappiest guy, how can anyone like him?
by greenfaerie38 December 17, 2006
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A person with a flat, straight, style-less or flairless wet or wet-looking comb-over, the wet comb-over itself, an oily-haired comb-over, an oily haired comb-over with chunks of dandruff or other abnormal or unexpected particulate matter, or any feature of a person having said variations of the comb-over that reminds you of that person having said variations of the comb-over.
The hair of a 1920's era poor farmboy using too much pomade after not washing for 7 weeks; a person having a barber style cut from a 92 year old barber who learned his trade in the 1920's; a person who doesn't wash hair often (say, less than once every two weeks) and uses the same cheap, bendy black comb with embedded scalp flake chunks to comb their hair in a comb-over pattern, whether the comb-over technically is needed or not. "Gee, that guy's hair is really spappy."
by doubleduck March 26, 2012
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a nasty squirty shit. when you shit so hard, it spaps up the inside of the toilet bowl, sometimes even hitting you in ass cheeks. very disgusting
oh my gosh, im not cleaning up this big ole spappy poo.
by haleyandcrystal March 6, 2014
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The act of pulling out of a woman’s vagina and spraying your love juice all over her.
I was fucking Lori in the back of my truck when I suddenly pulled out and spappy all over her face.
by The_Kerse June 26, 2020
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