Act of a male taking his genitals and repetitively moving back and fourth on the femaleass crack while moving up to the shoulders, making the female partner aroused.
Tonedingo: Can i Slide it on ya back?
Tammy: Of courseilllet you slide it on my back!
Term used for the attachment of the nucleophile in an SN2 reaction to kick off the leaving group. In slang, it means to fail a test or have a lot of difficulty on a test, especially an organic chemistry test.