When you snowboard up to a rail, but don't jump high enough to get on it, causing you to fall backwards and slide down the rail on your back.
"Dude, did you see that? I just grinded that rail on my back!"
"A spine slide?? That's more impressive than a real grind!"
"A spine slide?? That's more impressive than a real grind!"
by CCotua January 23, 2009
Get the spine slidemug. by jakens88 October 6, 2010
Get the Phallic Slidemug. Sexual position involving two males and one female, one male in the back with his penis inserted into her anus, female in the middle, and the other male in the front with his penis in the females mouth. If the man in the back starts humping, the females mouth slides up the other mans dick, if she slides back, she falls into his dick, pretty simple.
by CoolSexMan1443 October 16, 2020
Get the Sliding Burgermug. Two dicks in one hole thus the shafts of each penis would have to touch. The gyrating motion of sex would cause each shaft to slide past the other. This issue can happen on purpose or accident.
Micah and Tim were banging Cindy one in the pink and one in the stink when Micah slid out and instantly joined Tim in a sliding trombone
by wtf325! July 19, 2017
Get the Sliding trombonemug. A dating relationship void of emotional attachment and comprised of a sexual "sliding" relationship.
Slide dating refers to the action the penis takes when sliding into the vagina.
Slide dating refers to the action the penis takes when sliding into the vagina.
by Arnda September 13, 2011
Get the slide datingmug. When she eats nothing but salad for a week, so when you stick your tounge in her booty hole, the salad all slides out.
by Salad checker October 2, 2020
Get the Salad slidemug. by tammy the grade fiver October 7, 2021
Get the Elmo slidemug.