A flange warmer is a persons butt crack. It is spread wide to accommodate a mans penis to keep it warm in bed during the winter months. It is more effective if the butt cheeks are gently clenched to retain heat.
I had such a cold cock last night I couldn't wait to get into bed and get my boyfriend to give me a flange warmer.
by pipesucker February 26, 2018
Chaz: Who wants to do a raid in 20 minutes?
Paolo: I'm in!
Joe: Me too!
*6 hours later...*
Flangeline: I'll do it!
Chaz: Typical. Pulled a Flange again.
Paolo: I'm in!
Joe: Me too!
*6 hours later...*
Flangeline: I'll do it!
Chaz: Typical. Pulled a Flange again.
by JRSOne October 29, 2021
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