On Jam 

Referring to something (most often a product or object) as being good, great, nice, cool, or perfect.

Them sneakers are on jam, where you get those bro?

The sandwich that bitch made me last night was on JAM dog!

On Jam by PontiYack September 29, 2011

Jam on em

When you shart as you button your pants.

Yesterday Scott went full jam on em.

Jam on em by Bnicks45 February 18, 2021

jam on 

to keep on jammin', to never give up, keep looking forward, enjoy what's coming to you, live it up, push it to the limit, thrive

jam on my good friend, jam on

jam on by lmay January 14, 2010

jam on 

to eat; to tear through

i could totally jam on this bag of chips

jam on by Danielle August 24, 2004

Jam on toast 

meaning top of the range. cream of the crop. the dogs bollucks.

'yo dude, check out my new blades...'
'Jam... on... toast'

Jam on toast by Jiggins April 14, 2005

jam on a biscuit 

It's a continuation of the popular game of "sticky biscuit" where men masturbate over a biscuit inserted in a lady's vagina. Except in this version the lady is on her period.

"Oh man, you missed a great game of jam on a biscuit last night. That menstruation sure tasted good"

jam on a biscuit by mumsnot July 9, 2014

jam on toast 

Having sex in a car.

Jam on toast!!

jam on toast by silverspeaker January 12, 2011