kicking the tire 

Hooking up with and ex.

"Last night I was kicking the tire and it wasnt as tight as I remember"

kicking the tire by Shawn O'Brien May 4, 2008

kicking the tires 

Checking the viability of an unknown system by a quick test (derived from literally kicking the tires of an automobile).

(tyres, uk)

He tried kicking the tires of the new security software by infecting his laptop with a handful of common viruses.

kicking the tires by danja123 January 15, 2009