adjective Etymology: 1bi- + swing; perhaps from the freedom of movement allowed by this jacket Date: 1937 made with a pleat or gusset at the back of the arms
BI-SWING
Meaning of BI-SWING in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012