Definitions by Dawnavyum

Blue header 

A person whose oral servicing skills always leave you unsatisfied.

That bitch thinks she's bad, but she ain't no supahead, she is just a blue header.

Or

I was so excited for my best friends bf to go down on me last night, but it turns out he's a blue header so I had to send his ass home.

Blue header by Dawnavyum January 17, 2016