"Dect" is a term that refers to the desire to have sexual relations with either children or minors, it can be used as a dog whistle for other pedophiles.
A chemical mixture which detects the presence of invisible or really sneaky dicks (See "Dick-chameleon").
Usually used by spraying the substance over the location of the possible dick-chameleon infestation until it comes into view.
Mostly used by people owning a dick-chameleon wishing to masturbate while seeing their dick.
Joey couldn't find his invisible dick, so he couldn't fuck Laura efficiently.
So he sprayed some temporary Dick-Dector over his loins to search for it.
He found it...
when a straight guy can tell from a 6th sense that there is a homosexualin the room or place he just walked in
or
when a gay person walks past you and you get the bone chilling feeling that the person was gay
*steve just walks in the room* my gaydar dectector is going off...there are 5 gay people in here. 2 at the bar, 1 is with his girlie friends and the other 2 are OH MY GOD thats fuckin disgusting
*steve walks past a gay dude* that guy tripped my gaydar detector. faaaaaaag