be there or be square

be there or be square

A humorous phrase said to encourage someone to attend an event, indicating that their absence would make them "square"—the opposite of cool. Hey, I'm having a party on Saturday night—be there or be square!
See also: square, there
Farlex Dictionary of Idioms.

Be there or be square.

Sl. Attend or be at some event or place or be considered uncooperative or not "with it." There's a bunch of people going to be at John's on Saturday. Be there or be square.
See also: square, there
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

Be there or be square

sent. Attend or be at some event or place or be considered uncooperative or not “with it.” There’s a bunch of people going to be at John’s on Saturday. Be there or be square.
See also: square, there
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • GMTA
  • (Don't ask me,) I just work here.
  • (Don't ask me,) I only work here.
  • checks notes
  • Robert's your father's brother
  • my face when
  • my reaction when
  • no fox given
  • me three
  • my body is ready