Top definition
1. a youtuber that is badass at making little kids rage on roblox with exploits he makes

2. a guy that will whoop your fucking ass

3. the sfs king
i seen sinisterprototype do what he does best
sinisterprototype is a god
dont mess with sinisterprototype or he will get you
by Just your average internet guy October 12, 2019
Get the mug
Get a sinisterprototype mug for your friend Zora.
Apr 21 Word of the Day
I've been jabbed
by Francesco II March 20, 2021
Get the mug
Get a jabbed mug for your mate Jerry.