Similar to a "Window Licker"... An "Open Mouth Breather" that gets close enough to the window causing it to fog up whilst desperately fighting the temptation to acutally lick the window...
That guy is barely smarter than his window licking family... He's just a window fogger...
by Sofa King What March 04, 2009
A love made with such intensity and energy (usually in a car) that all the windows around get fogged up and everyone can see that some hardcore lovemaking must be going down.
I'll never make a window fogger with my girl if I can only last a few seconds in sex.
by For Shizil My Nizil December 22, 2006