What is Sig O?
1.
A shortening of 'Significant Other;' particularly useful when addressing a mixed gender group with varied marital statuses. Frequently pluralized: sig o's.
You guys should come over tonight for the bowling tournament, and bring your sig o's.
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the act of buying a Slim Jim beef jerky stick, then shoving it up your partner's ass, and either her, or him, poop it out, and you ..
1.
Insult for a friend or used during prank phone calls to a rival high school soccer team
"Who is this?"
"Well it might b..