dirty berty
a dirty berty occurs when your partner is giving you oral sex under a blanket and you fart and hold them under the blanket to continue while they smell your fecal odor.
(to guy friend) dude last night while sheila was giving me a blowjob i totally gave her a dirty berty.
Dirty Bertie
When a man is receiving a bj, before he comes he places the tip of his penis into the female's nostril. He then ejaculates into her nostril, she inhales the sperm and spits it out her mouth.
God, I can't wait to get a Dirty Bertie.
Dirty Bertie
Alberta
They don't call it the Dirty Bertie for nothin'..
Dirty Squirty Berty
A woman who can squirt great distances; usually with the help of magical fingers
I gave her a dirty squirty berty and she came past her ankles