Bro smash 

Two bros fucking each other

Chance and ryan bro smashing each other

Bro smash by Wakawakawakayomomma June 20, 2022

Bro Smash 

When two or more bros get together for a good, family-friendly Super Smash Bros tournament. Each match is typically played best of 5.

Chance: "Do you know what Friday is?"

Ryan: "Yeah man! It's when Kyle gets last place in Bro Smash. I wonder who takes gone the trophy this year"

Bro Smash by BestClimberEver June 20, 2022

Smash bro 

A guy you have sex with just for fun. Mostly used in gay community.

He is my smash bro, we are not really in a serious relationship

Smash bro by The real smashman July 26, 2019

smash bro 

Fuck-buddy who you think of as a bro.

"I recently got a smash bro so ive been having fun with him every weekend the past few weeks"

smash bro by anonymous November 15, 2018

i will full smash you bro

A threat that is used predominatly by people who are definately not going to inflict any damage of any kind upon you. Found mostly to be used by a vietnamese and a half asian kid residing in Melbourne, both who have done plenty of smashing.

Jimmy: I will full smash you bro!
Jules: I will full smash YOU bro!
(begin pushing each other)

i will full smash you bro by bigjules May 6, 2006