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1.
The act of giving someone head while the recipient is defecating in an outhouse.
I hear Miley Cyrus gives a great cuntry blumpkin!
by shank6 December 06, 2009
 
2.
Licking a woman's pussy to the point of orgasm while she sits on a toilet and defecates.
In a moment in evolutionary history, Skeeter thought, "My sister done blumpkin me all the time. Maybe I can do that for her." And the first cuntry blumpkin was performed...with mixed results for Skeeter got many splinters on his chin from the outhouse's wood toilet.
by onendone January 07, 2011