a person who is at a loss when it comes to romancing, flirting or other such activities. i.e. someone who fails at everything to do with love or courtship.
A gentle tap on the body of another, as a sign of praise or affection. Whilst it's usually done with a fist, it's not meant to cause any pain.
Think of it as a "fist bump" but instead of two people complimenting each other, it's "one-sided". So instead of two fists meeting, it's from one person's fist onto the body of another person, usually the shoulder, chest, or another part of the torso.
I've never seen her lovetap anyone after a game. I think she likes you"