Senses
筒子 tube
tube; pipe; tubular object; sleeve-like part of a garment
筒子 fur garment lining
(bound form) fur lining for a coat or jacket that has not yet been sewn into a finished garment
筒子 comrade
(Internet slang) common humorous substitution for 同志
筒子 bobbin
cylinder or spindle on which yarn or thread is wound
筒子 spill
paper spill or twist of paper used for lighting a fire
筒子 circles
(mahjong) the suit of circles or dots; one of the three basic suits in mahjong