It's like a fist bump but for couples, but just touching the tips of your tongues instead of a kiss on the lips.
Wife: Honey, give me a kiss before you leave!
Husband: But you are wearing lipstick.
Wife: Then just give me a tongue bump instead!
Husband: But you are wearing lipstick.
Wife: Then just give me a tongue bump instead!
by Bobdobolina June 7, 2017
Get the tongue bumpmug.