Top Definition
a verb that is used to describe when someone is exhibiting traits commonly found in people with down syndrome. i.e: acting/saying/doing something dumb.
Brendan: My favorite color is peanut butter

Laura: Quit downsing.


Brendan: Sometimes I smell my wallet to see if it smells like my butt
Laura: Damn it Brendan, why are you so downsy lately???
by ElDub91 May 09, 2011

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.