Top Definition
n. Thunder from down under.
"Bob's anal thunder smells like sh*t!"
by Gjelstiznles August 01, 2006
When someone has has way too many tacos at the party and fucked up your bathroom.
Frank: Did you see Tommy? He had like 40 of your mom's 'special tacos'

Bobby: Yeah that kid has some serious anal thunder right now, I wouldn't use your bathroom for a couple of days.
by purplegator October 21, 2010
When you eat too much mexican food and beans and you drink an energy drink, it creates a waste thunder storm.
Dude you should of been there last night, it was like Anal Thunder!
by Nintendo69 February 15, 2013

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