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1.
When you take whatever the hell you want, mix it with cream of whatever soup, and proceed to put it in a pan and bake it.
Minnesotan 1: We made some good old fashioned Minnesota Hotdish yesterday.

Minnesotan 2: With what?
by onlineidiot1994 May 28, 2009
 
2.
To blow your load in a women and then go down on her to get her to orgasm.
James lost his control and blow his load in Janet. Seeing she didn't get off James pulled a Minnesota Hotdish.
by ssmachinist August 11, 2008