Top Definition
A mix of Pepsi and Pepto Bismol.
Noah: "Would you like to try some Pepso?"
Courtney "That's gross, who drinks Pepsi and Pepto Bismol."
by paerole March 22, 2011

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.