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1.
a lady mormon
The box elder served me green jello with tiny marshmallows.

This polygamist's household has more box elders than the Susquehannah Valley.
by Moron-Eye January 10, 2011
 
2.
An cougar's box or vaginal area.
"Dude that chicks a MILF." Yeah but she's got a boxelder box!
by Jermaine Jackson June 06, 2007