Stump bump 

The erection caused by seeing an amputee

Did you see that girl with a missing arm last night. She was giving me serious a stump bump.

Stump bump by Asexuals March 19, 2016

gut-bump 

A friendly greetIng similar to the fist-bump where the 2 people involved in the greeting lift their respective shirts to expose their bare guts and then bump them together

I was out drinking last night and got this hot milf to gut-bump me after I bought her a shot

gut-bump by milpoolSK March 23, 2017

tongue bump 

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!

tongue bump by Bobdobolina June 7, 2017

Grundle Bump

To bump one grundle against another, much like scissoring between two people, but can occur between any gender mix. It can occur in rapid succession.

Last night we got hammered and tried to have sex but we just ended up grundle bumping.

Grundle Bump by The Realest June 16, 2017

sammy bump 

A particularly large bump of Special K placed on the webbing of a users hand

I just took a Sammy Bump and now I can’t walk straight

sammy bump by _sammy_ November 15, 2017

thot bump

thots that jump around dick to dick but do it in a fashionable way

Earl said to Tone "A and S are thot bumps "

thot bump by sexythot November 28, 2017

lil bump 

lil sniff of some white girl; typically used at tailgates, and before english class.

Yo bro, big test today. Might need a lil bump.

lil bump by statik420 December 3, 2017