"To drop a shoulder" means to lower or tilt one's shoulder in order to change direction quickly while moving, often used in sports like football or rugby. Full definition
Crew - collar jumper with drop shoulder long sleeves. (zaful.com)
This casual plain sweater with crew collar featured in oversized style, cable knit and drop shoulder design. (zaful.com)
The standout graphic design is sure to spark conversation wherever you go, and uniquely chic drop shoulder sleeves deliver a stylish finishing touch. (belk.com)