instadeath 

When you're walking along and you suddenly let go of every muscle in your body, making it look like you died instantly. Works best next to a pool or on the beach.

Watch me walk along the edge of this pool, I'm gonna instadeath into it.

instadeath by GGK78 May 16, 2013

Instadeath 

An excessive concentration of something.

Damn this coffee is strong enough to cause instadeath.

Instadeath by Sara Snider October 27, 2007

instabeat 

While playing Halo 3, you hammer on the "B" button to lay a melee smack down. At the exact same instant your opponent also hammers on the "B" button and you beat each other down. This is often followed by a "You asshole" as well as "instabeat"!

Joe - "Hey Bob did you see that we both beat each other down in Halo 3."

Bob - "Yeah that was massive INSTABEAT! you R-Tard. Did you see what I did to your sister as well?? INSTABEAT!"

instabeat by cole199, bribarian February 9, 2009

instabeat 

While playing Halo 3, you hammer on the "B" button to lay a melee smack down. At the exact same instant your opponent also hammers on the "B" button and you beat each other down. This is often followed by a "You asshole" as well as "instabeat"!

Joe - "Hey Bob did you see that we both beat each other down in Halo 3."

Bob - "Yeah that was massive INSTABEAT! you R-Tard. Did you see what I did to your sister as well?? INSTABEAT!"

instabeat by killacole/bribarian February 18, 2009

Instadent 

Instagram incident

The whole school was talking after the Instadent from the night before.

Instadent by maddieschwef May 28, 2014

instabeat 

While playing Halo 3, you hammer on the "B" button to lay a melee smack down. At the exact same instant your opponent also hammers on the "B" button and you beat each other down. This is often followed by a "You asshole" as well as "instabeat"!

Joe - "Hey Bob did you see that we both beat each other down in Halo 3."

Bob - "Yeah that was massive INSTABEAT! you R-Tard. Did you see what I did to your sister as well?? INSTABEAT!"

instabeat by cole p February 5, 2009