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The act of inserting the penis into another person's anus and then removing the penis and inserting it to the same person's mouth.

Also known as ass to mouth or atm
Tom was pounding Heather's ass and then pulled it out and stuffed it in her mouth for a spanish mouthwash--she loved it.
by Freggers September 28, 2010
The act of farting on another's face, particularly the mouth.
While David was sleeping, Brian sneaked into the room and gave him a Spanish Mouthwash that was so strong it burned his eyes.
by Freggers May 07, 2009