To bench press 225lbs. The weight is comprised of an olympic bar and 4 - 45lbs plates, also called "wheels"
by TidalEPC March 13, 2013
 Get the four wheelinmug.
Get the four wheelinmug. by d1s2c3s4 February 26, 2009
 Get the Four wheelin'mug.
Get the Four wheelin'mug. Butt sex. When a guy sticks his penis into a lady's ass hole. The penis usually ends up covered in poopies and generally quite dirty. this is where the expression comes from. Cuz usually if you go 4 wheeling in the backcountry, your car will end up covered in mud. Mud resembles poop and the car is a metaphore for your penis.
Female Infidel: OMG! Timmy was so horny last night but i was on my period. I let him go four-wheelin in the backcountry. It smelt like poops and now i cant control my sphincter so i wear a diaper.
Infidel: I went four-wheelin in the back country yesterday. Ass hole is the second vagina.
Infidel: I went four-wheelin in the back country yesterday. Ass hole is the second vagina.
by Mahmoud Amidemajad March 25, 2008
 Get the four-wheelin in the backcountrymug.
Get the four-wheelin in the backcountrymug.