Having the major shits after a night out at the bar, otherwise known as the "Day After Drinking Shits". Usually used by college girls and guys who nonchalantly want to let their friends know that they're really feeling the hangover the morning after, just not their usually hangover.
Kayla: Holy crap you guys, what happened last night?
Allie: I'm not sure but it must have been fun cause I totally have dads.