Bedtime Biff

A Bedtime Biff is a joint or spliff that is smoked before going to bed. It is often late at night/early morning as it is commonly consumed when its light outside. A Bedtime Biff can also be referred to as an illegal Bedtime, A Bedtime, or an illegal Venger.

Its getting light outside innit
"I'm tempted to roll my Bedtime Biff