the way that a redneck, usually one that hails from the Southern United States, refers to their pick-up truck. The added "'em" is the addition of Southern dialogue to the general name of a common type of truck, and usually makes the person driving appear to be of low intelligence
Cletus: Its a darn tootin fine day here in Mobile, Alabama.

BillyJoe: sure is Cletus, its mighty-fine. Wanna go for a ride in my fancy Ford F-150 pick 'em up truck?

Cletus: Yeeeeeeeehaw lets go!!!
by BossMan94 July 26, 2011
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