Cock friction 

Friction caused by two or more cocks. WARNING: When being lucky men with "balls of steel", sparks may occur. Keep from heat.

May or may not be on purpose depending on swingage of involved males.

Man, I was getting grindage on this chick last night and this guy pushed up in there. There was some awkward cock friction going on.

Cock friction by kayloh February 14, 2009

Cock Friction 

Cock Friction is what happens when you are fucking the same hole as another dude. Usually, it is the pussy. Cock Friction can lead to intense orgasm and extreme cases of liquid fog.

Kippers and I ended up fucking Beckies cunt at the same time. Cock Friction only made us last a couple of minutes before we both unloaded.

Cock Friction by Paul Kippers May 13, 2011

Iliotibial Band Friction 

a common diagnosis given by a trained medical professional when there is nothing wrong with his patient

patient: "Yo doc, my knee hurts like whoa"
doctor:"Hmm...looks like Iliotibial Band Friction. Have a lollipop."

Iliotibial Band Friction by The Knee Doctor September 30, 2011

Ball bag friction theory 

One theory to explain the occurrence of a hole in the crotch of a mans jeans. Over time the material is eroded by the constant friction of the swinging ball bag.

Person 1: 'Dude, your nuts are hanging out of that hole in your jeans'.....

Person 2: 'Yeah sorry man, ball bag friction theory'

Ball bag friction theory by Yippikiai June 9, 2013

feacal friction

The smell given off when human shit gets vigorously rubbed, often (but not always) during heavy anal pumping.

A guy on the bus today shat in his hand and masturbated with it.. you could smell the feacal friction....

feacal friction by Zonal K September 25, 2018

shaft friction 

Action in which two homosexual men try a heterosexual act by both inserting their penis into the same hole of a female. Their arousel is mostly derived from the two shafts rubbing together. This homo sexual occurance is referred to as shaft friction.

My boys and I thought it would be good idea to double dip in this chick until we felt the awkward shaft friction.

shaft friction by dude you're getting a dell September 27, 2015

Vicious Friction

1.To rampently masturbate causing extreme friction, heat and then pleasure
2.To be tied to a moving vehicle and be dragged down the road, the mangled body after the incident will have been killed due to vicious friction, Ouch.

1.Nick used vicious friction to take his stress away
2.Nick used vicious friction on his johnny long

Vicious Friction by Comero February 11, 2004