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A Kellen is a derogatory term for a mentally handicapped person. Can also be used to reference a gay guy who keeps asking you on dates. (Not the name)
1- Did you see that kellen in gym class?
2- There is a kellen on my team and he keeps asking me on a date.
2- There is a kellen on my team and he keeps asking me on a date.
by Sped Dog May 09, 2019