PDAdar is radar for Public Displays of Affection, or "PDA," and refers to an innate knowing for when it is or is not appropriate to engage in PDA.
Guy: Hey baby gimme some sugar.
Gal: Not here, there are too many people and my PDAdar is going off.
Guy: Ok, well how about behind those bushes over there??
Gal: Not here, there are too many people and my PDAdar is going off.
Guy: Ok, well how about behind those bushes over there??
by Milfia March 20, 2011