1 definition by Coolpersonforever

Top Definition
is like a filler and can be placed instead of words such as "mhm" "yup", and can basically be a reply to anything.

-"Wow you are so cool!"
-"oh you know"

-"Damn you pulled an all-nighter before the exam?"
-"oh you know"
by Coolpersonforever April 28, 2009

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