noun: Food that tastes so good it makes you want to give up your earthly possessions.
verb/adjective: Derived from the word yammy, to consume comfort food that’ll cheer you up more than sexual intercourse with a yammy; pussy.
John Doe: I just bombed my final and feel like shit.
Maree: that’s ok, I have something special planned to help you later tonight. 😉
John Doe: I think I’ll yam yak at Chick-Fil-A instead.
*30 minutes later*
John Doe: That was a hell of a yam yak, I spent $30 at Chick-Fil-A I feel loads better now.