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n. Any combination vehicle having two or more trailers, especially short pup trailers. Derived from the uncontrolable wiggle motion these vehicles have while traveling down the highway.
Driver, I dont mind sharing my lane, but could you try and keep that wiggle wagon on your side of the line?
by SirDiesAlot August 12, 2006
When a woman is not wearing bra and her breasts sway side-to-side when she walks instead of a healthy bounce.
Ewww gross! That lady has some massive wiggle wagons!
by macgowan August 29, 2010