When you're a well hung man and you lean forward sitting on the toilet and the tip of your penis hits the water giving you a cold wet surprise
ah Crap! I just gave myself a porcelain baptism again.
When someone is pooped on by a koala or another native Australian animal being "blessed" with the gift of Australia.
"A koala just pooped on me!"
"Congratulations on receiving your Australian baptism!"
Baptism performed without recipients consent
My girlfriend thought it was weird so she got ordained and last time we camped she pushed me in the water and performed baptismal rape.
the action of a priest ejaculating on the face of a minor.
John: "Did you hear what happened to those Altar Boys?"
Brian: "yeah, heard they got a Catholic Baptism"
Bohemian Baptism is when you are doing a person from behind while her head is over the toilet bowl. A common rule is that the person needs to get their hair wet during the act in order to count and in other areas, the toilet needs to be flushed in order for the act to be complete.
"She was leaning over the toilet bowl when I gave her a Bohemian Baptism"
When you get a bunch of your redneck buddies all around you and they all put in a dip. They then proceed to spit all over you, making you into one of them. This is the redneck baptism.
"Hey Billy Bob, give my girlfriend a redneck baptism."
When a woman squirts all over your face.
My wife gave me the ol' Mongolian Baptism last night.