The official definition is unknown to all other than the anonymous Kettering University student that was in the mens bathroom on the corner of units 33 & 34 on one whimsical day within Thompson Hall. The word was played horizontal in a match of Kettering Crossword. Many students came to question the meaning, some even ventured to come up with their own definition but no one truly knows other than the author who wrote this prodigious term on the wall within the stall.
"Hey have you seen Compton Baptism written on the wall inside the first stall?"
"What the fuck does Compton Baptism mean?"
"A Compton Baptism has to have some kind of sexual meaning"
"That guy who wrote Compton Baptism on the wall is one major player"