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1.
the art of spitting into a high persons anus and then playing rummikub on their afro.
"jamiecarr" sooo, you up for a spitback?
"chelsey" hell yizzle jamie you rummikub legend.
"john" you guys are sick, im off to cheljajo.
by akeem edward potter January 28, 2009
 
2.
after ejaculating in another male, female or koala bear's mouth, they attempt to put the cum back into your penis through your coinslot (hole at end of penis)
john: "beej(a fit woman) gave me spitback the other night"
matt: "fun?"
john: "yh man, when straight back in like posting a letter through a door"
by Chris blud May 13, 2008
 
3.
US slang for methadone which has been taken under supervision at a clinic, stored in the mouth and then spat up for resale. About 5 dollars for 80mls.
All I could score was spit back methadone. Hope I dont hepititis.
by junky101 March 16, 2005
 
4.
After ejaculating in another male, female or koala bear's mouth, they attempt to put the cum back into your penis through your coinslot (hole at end of penis)
john: "beej(a fit woman) gave me spitback the other night"
matt: "fun?"
john: "yh man, when straight back in like posting a letter through a door"
by Chris blud May 13, 2008