Underagers getting random strangers walking past to go into a shop and buy alcohol for them, literalluy jumping into the shop for them. Usually targeted are junkeys, alcoholics, students and foreigners.

OriginatedGlasgow/ any poor area with drink problems

when you're hungover as shit after a spending a night drunk as a skunk

A fight, gang fight, free-for-all, punch-and-jab, fight

A way to get in to the gang loop, it's just one way.

to be hype, exciting, awesome/fun

to be in the process of jumping

description of a club or party no one uses anymore