uber comes from the German language. It is a cognate of both Latin super and Greek ýðåñ (hyper). It can mean different things in german but super is most common.
Basically,
uber = super
leet (1337) is an english word and has two different meanings, one being elite but origanally meaning cool in the 2000s.
A combination of popular food delivery service ubereats and australian eshay slang word eetswa, often associated with mad cunts and therefore, drugs.
Meaning drugs that are delivered to your doorstep
Adlay 1: oi cunt you spilt the mix you gotta go get another 2fa from that wickr bloke
Adlay 2: biggest mish cunt, reckon he does ubereetswa?
A person you hate intensely not because they deserve such hatred but because they serve as a focus for your general hatred. A healthy way to dispense with excess animosity.
Jake's not really that big an asshole. He just serves as my hate sink.