Top Definition
When you hit it (plus) then quit it (delta). Usually the pluses out number the deltas, and usually there are no strings attached.

Also, plus delta can be used as a reference to a person with whom you'd like to fuck.

See also, plus buddies.
I would love to plus delta THAT.

Can we just plus delta and get it over with?

He is definitely a plus delta.
by jsleeepy November 15, 2009

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