Family Life What does pants mean in slang? What does pants mean in slang? (UK, slang) Rubbish; something worthless. You're talking pants! The film was a load [or pile] of pants. Related Posts:Joists, Rafters, and Ceiling Joist Tables are available for use in the South.How To Wear Really Low Baggy Pants Without Losing ThemGary Cooper died at 60 of cancer.How much weight can a 2x4 support take?