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1. redlining
Running a piece of equipment, most often an engine or other powerplant, way beyond it's rated maximum, usually in an emergency situation.

Usually, denoted by taking the engine revs or temperature up into the red area on an indicator dial, risking permanent damage or catastrophic failure.

"How fast will that thing go ?"

"One fifty five, but after one forty you'll be redlining"
2. redlining
when a girl has her period.
no sex tonight, ash is redlining.
3. redlining
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.
4. Redlining
This term is used for have sex
It was so amazing they way she was Redlining me last night
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