Magpahatid Filipino
maghanap ng salita, tulad ng sapiosexual:
 
1.
To strike ones penis against anothers forehead resulting in an audible "thump". Often used to test the erection level of the penis.
Just before Luke put his penis in Megans mouth, he performed a density check to test that he had a full erection.
ayon kay Lexicon Lenny ika-03 ng Abril, 2003
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