Top definition
Last one up, that can't fall asleep due to excitement from socializing. Being hushed only encourages uncontrollable laughter.

Can Also Be: Phenomenon when you are still awake and uncontrollably laughing in a social situation where you're supposed to be asleep.

Same as: SlumberParty Syndrome
Blue was suffering from slumber party syndrome as she couldn't stop uncontrollably laughing hyena style, as everyone else is passed the fuck out.
by alliue December 18, 2008
Get the Slumber Party Syndrome neck gaiter and mug.
May 3 Word of the Day
Internet persona(s) who happens to follow you and you happen to follow them back and maintain communication with and have a mutual liking for eachother whether it be friendship wise, etc. (Mutuals if more than one mutual)
Monica: Oh yay! I made a new mutual today because we started following & talking to eachother on twitter and we like eachother (so it seems).
by qtheresurrection March 25, 2015
Get the Mutual neck gaiter and mug.
2
Last one up, that can't fall asleep due to excitement from socializing. Being hushed only encourages uncontrollable laughter.

Can Also Be: Phenomenon when you are still awake and uncontrollably laughing in a social situation where you're supposed to be asleep.
Blue was suffering from slumberparty syndrome as she couldn't stop uncontrollably laughing hyena style, as everyone else is passed the fuck out.
by alliue December 07, 2008
Get a Slumberparty Syndrome mug for your grandma Julia.