Also bell-bot·tomed. (of trousers) wide and flaring at the bottoms of the legs.
bell-bottoms, (used with a plural verb) bell-bottom trousers.
Origin of bell-bottom
First recorded in 1885–90
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
trousers that flare from the knee and have wide bottoms
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012