I think this is the best but worst way at the same time you have to be pro i used this when i played baseball and would get torched so much you throw up what ever you eat. so after baseball period i would have english and this is what happen i threw up but i would keep it in my mouth its really hard and if you do do this method make sure u dont move your tongue or else u can feel all the little parts of what u ate.

Idk may be nasty but it works perfectly so you wont throw up anywhere you can at least controll it

DO NOT hold it back. Seriously. I would say throw it up. Your body is trying to get rid of it. I tried holding it back by putting my hands over my mouth and it came out of my nose. It smelled horrible and it burned. I suggest you keep a bucket close to you.