Top Definition
when a girl gives you a blowjob and acts like she swallowed, but didnt. and then she kisses you, to share a mouth full of semen that you didnt expect. hence the *surprise*
Man, my girl got me with the snowball surprise last night..
#snowball #snowballing #snowrocket #cum swapping #spermswap #cum dumpster #bloody snowball
by Reek March 15, 2007
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