When you breathe weed through the end of the joint/blunt and you spit it out real quick making a beatboxing sound
"Did you just beatbox that joint?"
"Yeah, need to put a filter on it next time"
is to make drum beats, synth, pluck, bass, bassline and other musical stuff using your tongue,lips,teeth, vocal cords and other stuff and isn't very easy and can be learned by tutorials on YT or made by accident or purpose and sometimes sound inhuman and certain made sounds have certain names like liprolls and inward k snare and so much more and these sounds are created by certain people and beatboxing can be used to make music or combined and so much more and sometimes can be easily controlled or hardly depending on where you're doing it, with what you're doing it and how usually you use it and ye, that's it.
-hey "someone" wanna hear my new beatbox beat.
-okay, spit it out.
Female masturbation. The opposite of male masturbation aka "beating meat".
I needed to leave work early to go Beatboxing on my OF.
You are trying harder and harder to try to make cool drum and instrument sounds with your mouth although all you're doing is spitting into your friends faces.
e.g.
You: Hey bro wanna hear my beatboxing
Friend: Steps back*
Friend: alright
You: pttpthtphtphtpthpt
Friend: You cannot beatbox, so shut the f#@k up and learn how to beatbox.
Used by my brother, it means masturbating.
My brother, you beatboxing?
Me, no, as he just walks into my room, whall I’m on my phone.