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noun: when laying in your bed under the sheets with a boner that pushes the comforter up to a peak resembling a mountain.
The other day my mom came into my room and i had a mountain boner, so i had to roll over onto my side until she left.
by kseng14 September 29, 2009
3 1

Words related to Mountain Boner:

boner erection hard-on mountain woody