Noun, someone who gives a
virus or infection (not an STD) to his or her significant other,
like the flu or pink eye, requiring a trip to the
local CVS.
Chip: Babsy, you definitely don't just have allergies. I think that's an ear infection.
Babsy: How do you know, sweetie?
Chip: 'Cause ya gave it to me,
Miss Jitterbug!