mug yourself 

being an arse and doing things that make u worse off. such as stealing from yourself.

dont mug yourself

mug yourself by Himalaya joe April 10, 2003

don't mug yourself 

ok so here we go, this was first coigned by a british urban group with a twist called 'the streets' when it became the title of possibly the best song on their first album 'original pirate material'. Essentially the phrase means 'dont shoot yourself in the foot by getting obsessed with a girl who isnt worth it.' - dont be a mug, quite simply, GET A GRIP!

the corus from the streets' song:

"Hold it down boy, your head's getting blurred
I know you cant stop thinking of her
By all means you can vibe with this girl
But just don't mug yourself, thats all don't mug yourself. "

don't mug yourself by Matt_uk August 15, 2006

Don't mug yourself 

Noun
1. Brit., informal for being stupid or gullible about what a person is telling you.

2. U.S., Losing your identity in a co-dependent relationship.

1. She's so full of bullshit mate.

No no its not like that, I can trust her.

Mate, "Don't mug yourself"

2. She says she likes artsy guys.

Do you think your an artsy guy?

I like art; Yeah I could be an artsy guy I guess.

Ugh, Don't mug yourself.

Don't mug yourself by Zombilly July 26, 2010

don't mug yourself 

don't screw yourself over mug yourself

She has STD's dude don't mug yourself

don't mug yourself by L'pool doggy February 27, 2005