Usaully when waking up in the morning, you expel a massive amount of compact gas. It usaully is quite loud, wet, massive, and stinky. Usaully lasts for more than 4 seconds.
"Geez what's that smell?"

"Oh shit sorry, I just had a big beluga!"
by Rods March 30, 2005
Get the Beluga Fart mug.