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!