1) a massive crap

2) like giving birth out the rear
mate i just backed out the biggest semi-tralier you will ever see!

Larry Bird drives Semi-trailers a lot after a big meal.
by J. Depor December 21, 2009
5 Words related to semi-trailer
when you are pooning a chick and you try to stuff ur nuts in too
also called "truck and dog" and "the FULL PACKAGE"
i gave that chick the FULL PACKAGE!
she got the FULL PACKAGE!
i semi trailered that biatch!
i got the whole truck and do g in there!
by [stooge](Zumpo) August 09, 2005

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