Yes, I didn’t believe it either, but it’s English slang from Victorian times and it means anything from snogging through making out to getting it on.
Mickey Fickey is the TV friendly version of Mother Fucker.
It first appeared when TBS first aired Spike Lee's Do The Right Thing back in the 90's, overdubbing all uses of the word "mother fucker" with "mickey fickey". This actually made some of the scenes, especially the part where the guy is trying to buy 20 D batteries, quite funny.
"D! MICKEY FICKEY, D!"
The term has since grown in popularity as people use it in place of mother fucker to be funny.
Fake Birkenstocks that can be bought at Target or Wal-Mart or stores of that nature, and they don't cost a fortune. They tend to be more comfortable than real Birkenstocks because they aren't made of huge blocks of wood.
Tracy (unpopular): Like my new Birkenstocks, Kim?
Kim (popular): You mean Firkenstocks? I could tell those weren't real from a mile away, poser. *Turns nose up*