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1.
Jurassic Park x1 x2 x3 x4 x5
refers to the comparission of small through large burps to t-rex screams in jurassic parks movies.

1 being a small burp
through to 5 a huge disgusting lengthy burp
"Burp"
"meh jurasic park 1"

"BUUUUUURRRRRRRRPPPPPPPPPPPPPPP"
"oHHHH thats like a jurassic park fiivvee"
by LEM Chino April 10, 2005