mex effects 

Cheap shit you can find at autozone to deck out your car/truck. Typically used by Mexicans hence the name.

Man check out the mex effects on that truck!

mex effects by Mr J March 7, 2018

Mex-effect 

A feeling induced by attempting to patcipate in physical activty following the consumption of a large meal, usually mexican food, whose symptoms include ravenous hunger and extreme fatigue. One's limbs will often become weak, shaky and wobbly.

He had a meal at that new Mexican restaurant, then played a lacrosse game. He got a bad case of the Mex-effect.

Mex-effect by Yu Wong April 9, 2008