A "grump dump" is when a person or place is really down in the dumps. When one is not feeling good and is just grumpy all around.
Person 1: ugh, I hate math class!
Person 2: ay stop being a grump dump at least we don't have a test!
An acronym for âsleepy bitch diseaseâ
A joke/ phrase the orginated on Tumblr as a spin off of an STD.
Oh look at him looks like hes got SBD.
Itâs two am watch out SBD might get you.