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1 definition by Ciao [Scum Crew]

From redline -
Pronunciation: 'red-'lIn
Function : verb
: redline, to redline, also redlining; to engage in sexual intercourse at an extremely rapid tempo.

Origin in redline : a recommended safety limit; the fastest, farthest, or highest point or degree considered safe.
Hank said he was redlining that bitch for an hour.

After redlining that bitch, she could barely walk.
by Ciao [Scum Crew] April 03, 2006