look up any word, like yeet:
 
1.
When driving on the highway with little to no traffic, and everyone in front of you is going the same speed so it is impossible to pass them. Coined in southern California.
That retard just moved from behind the semi and is going same speed. We're totally mexiblocked!
by gobuffs March 29, 2011
 
2.
To block another car from passsing on the highway by filling up all lanes with vehicles traveling at the same speed
Yo, that ice cream truck and PT cruiser are mexi-blocking me.
by vipergt212 March 29, 2011