a night that consists of one spilling their guts to another person or multiple people usually while under the influence of alcohol or some type of drug.

"hey Amanda, what did you do last night?"
"man, i had such a spiller night!"
"uh-oh! was this a single spiller night... or was there multiple?"
"do you know me at all? of course there was multiple."

Amanda has had a multiple Spiller Night! Now that is a scary thing...
by sugar plum March 23, 2008
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