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1.
the process of smacking your penis across the face of a woman during sex
After I donkey punched that hoe I woke her up by elephant trunking her 6 times across the cheeks
by What is Gee April 25, 2009
 
2.
When two homosexual men wrap and or rub their unerect penises together.
The two of yall are so gay I bet you go home and do elephant trunking.
by ATXPLX July 25, 2008