A man with incredibly large biceps, but terrible taste in women/tattoos/clothes/cars/rented accommodation(free)/facial hair/wives/husbands/aardvarks/greengrocers/hairdressers/mathematicians/religion/Spaniards/food/Spaniels/Capital Gains Tax
Referring to marijuana (aka pot) dab, it is oil which is lumpy and out of place. Some might even say it doesn't make sense why it ever took the form it did, but then again isn't dabbing an art?
Look at that shlum jum on the end of that braided dab.
To Jum. A very funny term that is the name of a google play store version of the PSP port of "Crash Of The Titans".
Caddicarus couldn't do a Jumming Mission because his phone was gay
A person whose mission is it to jumm, jumming is the act of stroking ones ding dong
Someone who's pretty lame. Not cool.
Dude: "Hey who switched on me?"
Woman: "Oh, it was Oliver."
Dude: "Ugh, what a friggin' Jum Knucker."