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1.
To partake in an activity which no matter how detrimental to your health, allows you to enjoy yourself as much as possible.
Did you treat yourself over the weekend?

Are you treating yourself?

Treat yourself as you wish others to treat you.
by weelisa September 28, 2009
 
2.
synonymous with treated
when someone makes a mistake -
"treat yourself!"
when someone is caught slipping -
"treated!" "treat yourself"
"hey! nice shoes! psyche... TREATED!"
"treat yourself"
by dimsum delight August 16, 2008
 
3.
To get laid, have sex, achieve a one night stand.
Richard: Did you treat yourself last night Chris?

Chris: I most certainly did.
by AnnaHarry May 09, 2009