Lasse Syndrome is when you are better than anyone else, especially your friends. A person with the special syndrome, has the ability to fuck everyones girls.
by Albert Ottenberg December 14, 2016
Get the lasse syndromemug. 
Lasse is a little guy, he has small balls and a little dick.
Lasse has no friends, and his family hates him.
He likes to place things in his asshole.
When your name is Lasse you are often very very gay.
Lasse has no friends, and his family hates him.
He likes to place things in his asshole.
When your name is Lasse you are often very very gay.
by LyngeTheKing March 29, 2022
Get the LILLE LASSEmug. by doodling July 1, 2011
Get the jack lassmug. A slut who wears tight yoga pants and a curled up North Face jacket on top. They meet everyone in de town.
by Blindboy B-Club December 13, 2019
Get the Latex lassmug. A phenomenon where a self righteous partner uses the latest popular buzz words to discredit their partner and discourage any form of disagreement with them as it will make them a gaslighter, manipulator, etc. In short, just another way partners can tell everyone how they’re such great partners, and that the other person is magically always the problem.
My girlfriend has been sending me articles about “how to stop gaslighting”, I can’t even disagree with what she says anymore because shes always Lass-lighting me and running off to bad mouth me to her friends.
by 2Cool2BFoold November 4, 2022
Get the Lass-lightingmug. 