Healthy legs
A group (of usually 5 or 6 girls and boys below the age of 25) of fun, healthy people who are all very close, and enjoy kicking up a fuss and creating banter wherever they go, a little squad with lots of inside jokes and phrases.
(in conversation)
Person 1: "hey look over there, some healthy legs!"
Person 2: "wow! They're so cool!"
Person 1: "hey look over there, some healthy legs!"
Person 2: "wow! They're so cool!"