Top Definition
To be really, really angry.
Deano got a big black dog up him when he found out Johnno had fucked his girlfriend.

or
When Deano was yelling at Johnno about not doing something he said, Johnno shrugged and said, "I dont care, you're the one with the big black dog up ya".
by SonOfMosh May 02, 2006
5 Words related to big black dog

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