noun

• menstrual period. Sometimes abbreviated AF. Also Aunt Flo and cousin Red.

  Man, Aunt Flo is visiting.

  AF came today.

  I had unexpected company last night... Aunt Flo and cousin Red came to visit.

  by Emily, UC Berkeley, Berkeley, CA, USA, Jan 13 1998.

origin

• This term may be a reference to unwelcome family members who arrive unexpectedly and without prior notice.

  by Emily, UC Berkeley, Berkeley, CA, USA, Jan 13 1998.

noun

• menstrual period.

  I had unexpected company last night... Aunt Flo and cousin Red came to visit.

  by Diane F., Rochester, MI, USA, Jun 13 1999.

origin

• This term may be a reference to unwelcome family members who arrive unexpectedly and without prior notice.

  by Diane F., Rochester, MI, USA, Jun 13 1999.

noun

• an imaginary creature to blame flatulence on. Appears in Kurt Vonnegut's Breakfast of Champions (1973).

  Speaker: Did you just fart?
  
  Response: No, there must be a Barking Spider in here.

  by Mark L., Newburyport, MA, USA, Nov 07 1999.

noun

• see Aunt Flo and cousin Red.

  by Anonymous, Jul 24 2007.

noun

• a metaphorical disease where one speaks at length about something one knows nothing about. In other words, running off at the mouth without a clue. Submitter John Voight knows the term existed in deep south (United States) during the 1940's and 1950's as his dad used it frequently. He notes that his dad may have picked it up in World War II.

  All that meaningless spew coming out of his mouth is just a bad case of epizootics of the blowhole.

  by John Voigt, Reston, VA, USA, Dec 05 2002.

noun

• a fictitious sorority with overweight members.

  Uh, dude... I think she's a member of Omega Mu.

  Why were you talking to that Omega Mu?

  by Kevin H., Cedar Rapids, IA, USA, Nov 29 2001.

origin

• "omega" is similar to "mega," which means "very" in the vernacular. "Mu" is pronounced like "moo," which in the United States is the sound cows make. The term "cow" is used to refer to an overweight person. On US college campuses, people are sometimes referred to as the sorority or fraternity they are a member of, rather than saying "member of (organization)" as the example sentences show.

  by Anonymous, Jul 26 2007.

noun

• a mysterious creature that causes general mischief. Used to divert blame for a mishap or oversight.

  Speaker: You don't have a condom?
  
  Response: Uh... the rickett stole it.

  by Rachel, Columbus, OH, USA, Dec 19 1997.