When something is moving so slowly, it resembles the traffic congestion of Dallas during rush hour. South/East Texan phrase.
"Computer froze again, damn thing's locked up bigger than Dallas"

Typically run together as "locked up bigger'n Dallas".
by outsnyder November 7, 2011
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Almost all the bigger-ups of the town attended the party thrown by the renowned business tycoon.
by uttam maharjan June 28, 2010
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