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1.
Cheeky B -

Blowjob

Suckin off a guy
as in

"Pulled a fit girl last night, she gave me a Cheeky B"
by Roo0630 April 18, 2011
 
2.
Yet another word for a bucket (or gravity bong in some places).
Person 1 - You having a cheeky b before you drive home?

Person 2 - What if I get stopped?

Person 1 - Sort the policeman a cheeky b in the back of the car!
by glueis July 14, 2006