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!