look up any word, like cleveland steamer:
 
1.
A method of saying one has flatulated without offending geriatric ears. Similar to the Australian phrase of "opened your lunch." People no longer have to say "he farted."
Dude, who cracked a rat? Jimmie, do you need to go change your draws?

Ah man, I just cracked a rat so bad, it tweeked my seat!
by JLG September 08, 2003