long johns
"Long johns" are essential for staying warm in cold weather and are often used as a base layer under outerwear.
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Definition
B2Cold Weather
(informal)Warm undergarments that cover the legs, often worn as a base layer in cold conditions.
Example
- He put on his long johns before heading out into the snow.
- Long johns are a must-have for winter camping.
B2Cold Weather
(informal)A two-piece set of thermal underwear, including a long-sleeved top and long pants.
Example
- She bought a new set of long johns for her ski trip.
- Long johns provide extra warmth under regular clothing.