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'Sinistro' is a carioca's slang that could means st. cool or st. really bad. It depends on the emphasis.

ex.: Man, the party last night was 'sinistro'. (cool)

ex.: So, it seems the accident was 'sinistro'. (terrible)
by Antonio Proenca March 16, 2007
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Sep 14 Word of the Day
Micro marriging is when your partner manages your personal day-to-day tasks with you much like a Micro Manager at work.
Wife: “Have you put the sheets out to dry and put the towels on?”
Husband: “Yes. You know I am a grown adult also used to live alone so you do not need to micro marrige me”
by Thomas Maddocks March 16, 2018
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