bladder buster
(n) Any of the ubiquitous, huge, outrageously obnoxious soft drink containers sold in convenience stores.  They get larger each year and before long, some nut will weld a crash-bar to a 55 gallon drum, walk into a Kum-n-Go and expect a 59 cent refill.  The bladder buster has gotten so large that no vehicle's cup holder can hold them.  When you urinate after drinking one, the fire department's hazmat team is summoned and the EPA files an incident report.
Damn, Frank filled his bladder buster at the truck stop and then we had to stop every 20 minutes of the trip so he could squirt the dirt.