look up any word, like dirty sanchez:
 
1.
The day after one eats Mexican food.
"Hey dude, happy burpday"
"Don't talk to me. I have diarrhea. "
by GoldsteinLover November 24, 2009
 
2.
A Happy Birthday Celebration with a twist in that the Birthday boy/girl is going out on the town to celebrate with a few drinks.
Meant as a fun way to say Happy Birthday
Happy Burpday.
Congratulations on your Burpday
by Manxy007 July 27, 2010