Top Definition
Fastnbulbous is a term meaning to do something out of its usual time or an item in a place that you do not expect to see it.
When I got home from work I decided to have a bowl of cereal, fastnbulbous of me I know, but I was hungrey.

OR

In a fastnboulbous event today Mick Jagger was spotted on the 11c bus in birmingham using his OAP travel card.
by Phillip Beale April 20, 2008
5 Words related to fastnbulbous

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