MC Hammer had a hit with the name "U Can't Touch This." Generally means "I'm too good for you." or "You'll never be as good as I am."

A song from Family Guy, sung my Peter Griffin.

can't touch my swag is a fucking gay ass rap parody by NoFuckerz (commonly associated as NFKRZ) in it he claim how swag he is while a nigga called poopsteve is not

A song by MC Hammer released in 1990, also a song used for mocking if you don't others touching your stuff