A drinking game originated from Serbia during the Yugoslav Civil War in 1984.
The Blast is the process of drinking anything, (cum, beer, orange juice, water) and spitting it out in 360 directions.
Another member is supposed to intercept said liquid in the air and drink it mid-flight. This continues until someone inevitably swallows or nobody catches it.
"My friend Mike sucks at the blast"
"I married my girl after I saw how good she was at the blast"