Boos flu

A state where a Human catches a virus know as the boos flu (originating from animals). This virus cause one to laugh at any joke whether it's funny or not. Over time the laughter gets so out of hand that one's system can no longer take it and shuts down, therefore leading to death

Sophie got the boos flu last night, sadly her brain found humor at random times therefore leading to her passing

Boo Flu

When a friend of yours has recently started dating another, and is suddenly unable to attend and social gatherings because he is with said boo.

"What happened to Jim?" "He got a case of the Boo Flu, we won't hear from him until he is single again"