Top Definition
To spell one's name in ejaculate on the chest of one's partner. Bonus points are earned if a stamp is wiped on the penis and then affixed to the partner's forehead.

Related definitions: Mexican Return Address
It cost me 37 cents, but it was definitely worth it to give her a Mexican Postmark.
by Soda November 11, 2004
Bush sends national guard to postmark mexicans as guest workers!
LA dudes, check it out! red, white, green, bar code on my ass!

Wow Mexican Postmark I know gringos have mexican love.

Muchas gusto National border patrol man. Viva El presidente GWB!
by itichie_nocanpo July 03, 2006
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