'the pits' definitions:

Definition of 'the pits'

From: WordNet
noun
Any place of pain and turmoil; "the hell of battle"; "the inferno of the engine room"; "when you're alone Christmas is the pits"; [syn: hell, hell on earth, hellhole, snake pit, the pits, inferno]

Definition of 'the pits'

From: GCIDE
  • pits \pits\, the pits \the pits\n. The worst possible situation, person, or thing; something extremely bad, boring, or depressing; -- always used with the; as, cleaning the house is the pits. [Slang] [PJC]