A non-excuse for not playing a video game with all your friends while also not wanting to give an actual, legit reason why.
Derek: I don't want to play that game... it's a life ruiner!

Flint: Why do you think it's a life ruiner?

Derek: ... because, it is.

Flint: ... k
by spinny69 May 28, 2021
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Something or somebody that destroys your life beyond repair, like drug addiction, unplanned pregnancy, or being disfigured.
He got accepted to an Ivy League college, but he can't go because he knocked up his girlfriend. What a life ruiner.
by irksomekitty May 21, 2009
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A woman with caked on make-up, usually found frequenting clubs and bars. When you take them home to bang them, you wake up in the morning with a ruined pillow-case from their massive amounts of make-up being rubbed off.
So after I banged that Pillow Case Ruiner last night I had to go out and buy some new pillow cases! Shit was nasty!
by FrattinHardCMU May 5, 2011
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someone who can be counted on to ruin a holiday, often caused by the inability to deal with stress and to deflect it onto others - be it family, or otherwise - leading everyone to be stressed out and annoyed with each other.
"Despite our plans to embark on our road-trip in 8 o'clock in the morning, we didn't manage to leave until 1pm, as my mother threw a fit and made us clean the entire house first. Everyone was in a foul mood thanks to my mother - the serial holiday-ruiner".
by IanR December 25, 2009
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