When you sit reverse or backwards on the toilet and take a dump, or masturbate.
Dude, how did you leave skidmarks on that part of the toilet, were you sitting frontside?
I was definitely frontsiding that shit!
I frontsided the shit out of my neighbors toilet!
by Frontside UpperDecker November 21, 2012
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The combination of a frontside 180 and a kickflip
i just frontside fliped a 50 stair
by spark211 February 19, 2009
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Blowjob. Was used for the first time in Robins single "Frontside Ollie" in Finland.
Hes sister suddenly pulled the perfect "frontside ollie"
by jipx February 6, 2012
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When a girl funnels 4+oz of Dr McGillicuddy's Fireball whiskey into her vaginal entry, and then proceeds to expulse the liquid into the partner(s) mouth(s) from no less than 1 metric meter away.
Oh man, last night Shirley gave me a frontside McGillicuddy and I was so effed that I pissed all over my laptop.
by JCity September 30, 2009
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It's when you're getting a blowjob and the girl takes her tongue and licks the bottom of your dick REAL SLOW from nuts to dickhead.
I knew that ho for all but 3 hours and she was givin' up the frontside crawl and shit yo.
by That crazy cracker Newsense October 22, 2004
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a snowboarding or skate trick. when you pop onto a box or rail, turning your body 90 degrees backwards, landing with your deck in a boardslide (perpendicular to the feature) facing uphill or backwards as you slide down the rail.
"yo, did you see that kid's frontside boardslide on that DFD rail, sickk..."

"i smashed my face slipping out on a frontside yesterday."
by t-fried-rice. March 6, 2009
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when a boy and girl are having sex. The man is sitting down analing a girl and the girl is turned to the side and is jumping up and down
"ohhhhhhh fuck me harder. just do Frontside Anal to me babyyy yessss"
by Frontside Azar June 18, 2009
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