A name to decribe a girl who you think is sorta a bookworm, kinda cute in a mousey kind of way, and ideally wears glasses. use it in situations that cause seperation anxiety or just whenever to let somebody know you care about them. Always to be used in a affectionate manner, it is a petname like honey, sugar, cupcake, baby, etc.
Person 1:(calls person 2)
Person 2: Hello?
Person 1: Heya Jitter Bug, I miss you.
Person 2: Awwwwwwwwwwww, your the best too!