by Heehee^..^ February 08, 2021

A person who has become obsessed with the famous What's 9+10? 21 vine, they will often repeat the lines in the vine over and over again while still thinking its super hilarious. They also like to use 21 in almost every math situation ever. 9+10ers are considered to be extremely annoying by other people.
9+10er: Hey dude?
Person: What?
9+10er: What's 9+10 (silent laughter)
Person: (sigh) Get a life you 9+10er
Person: What?
9+10er: What's 9+10 (silent laughter)
Person: (sigh) Get a life you 9+10er
by NoNeedFriends July 20, 2016

by MOCO & P-Phat February 11, 2009

A derisive term for a union official that sold out the Hormel Strike of local P-9 UFCW in 1986. Org. Austin, Minnesota.
by eugene February 07, 2004

Ironischer Ausdruck für eine (unausgesprochene) Wette über 10 Euro, mit der man zeigt, dass man das Gegenteil von dem glaubt, was die andere Person gerade gesagt hat. Wird meist sarkastisch benutzt – oft auch einfach nur „10er“ als einzelne Reaktion, ohne ganzen Satz.
by sachbearbeiterin3000 July 16, 2025

A person from Crestline that is usually a tweeker but has most of their teath and (trys) to dress nice.
by Rural Dictionary (RD) May 05, 2021
