Like previous definitions, can be used to show someone who is good at something in particular, or is a good all-round person that people aspire to be.
It is also used more casually on individual occasions where someone has provided/done something and you might say legend! to show more enthusiasm than just saying thanks or well done.
1 - 'Person A - Hey look what I found for sale on this site *links Person B to some rare item*
Person B - Ah you legend i've beenlooking for that for ages!'
2 - Person A - *opens door a third time for guy that keeps forgetting their keys*
Person B - Cheers, you legend!
Someone who lifts the keg above their head instead of handstanding on it; someone who is hot like molten lava but super chill; someone who gets ass from all the girls because his pvc pipe is so huge and they all know it; someone who barbeques nude for parties; someone who everybody knows; someone with a rugby tattoo next to their balls; someone who knows everything about bongs
The "back story" for any individual under cover; fake name, place of birth, fake family, fake social security, etc.
Typically used for government agents in deep cover operations.
Agent 1: Your going under cover.
Agent 2: When? What's my cover?
Agent 1: You start now, your Legend is enclosed in this file.
Agent 2: Alright.
Agent 1: Good luck, and don't die.
Agent 2: Thanks?