An acronym that stands for "Shit My Pants", used to convey an overwhelming feeling of hilarity in a textual exchange.
Jim sent a picture of his garbled package tea bagging Melissa. I responded with "SMP!!!", because lol just wouldn't do.
By creatorcreator
Shorten for Small penis man. A person who has a very small penis (Under 5 centimeters when hard).
DaOPEL is a small penis man. WOW look at that small penis man, but DaOPEL is still the smallest small penis man.
By Gaylord Foker
"Stretch Mark Pussy"
That girl has some major SMP.
By mR.siNiSTer
SMP - Social Media Prayer: Photographing your dinner and sending via text message to your friends and family before digging in.
A server comes to check on your table, but stops because she sees all your heads bent over for grace… until she notices the glow from your mobile devices and realizes that your actually participating in SMP.
By Bridget Soden
a brand of clothing try-hard skaters wear to look kewl.
i iz smp skater bro, i'll kickflip up to this ledge and look kewl, fo' shizzle my nizzle!
By Squatdog