leg

1 leg /ˈlɛg/ noun
plural legs
1 leg
/ˈlɛg/
noun
plural legs
Britannica Dictionary definition of LEG
1 
[count] : one of the long body parts that are used especially for standing, walking, and running
— see picture at human; see also peg leg, sea legs
2 
: an animal's leg when it is used as food
[count]
[noncount]
3 
[count] : any one of the long thin parts that support a table, chair, etc.
4 
[count] : the part of a pair of pants that covers the leg
5 
[count]
a  : a part of a journey or race
b  : any one of several events or games that form a competition
6 
legs [plural] US, informal : lasting appeal or interest

a leg up

informal
1 
give someone a leg up
a  : to hold your hands together so that someone can step into them while climbing up onto something
b  : to give someone an advantage over others
2 
have a leg up : to have an advantage over others

an arm and a leg

— see 1arm

break a leg

informal
— used in speech to wish good luck to someone (such as a performer)

get your leg over

British, informal + impolite, of a man
: to have sex with a woman

not have a leg to stand on

: to have no support for what you think, say, or do

on your/its last legs

informal
: very close to failure, exhaustion, or death

pull someone's leg

informal
: to make someone believe something that is not true as a joke : to trick or lie to someone in a playful way

shake a leg

informal
: to go or move quickly
— often used as a command

stretch your legs

informal
: to stand up and walk especially after sitting for a long period of time

with your tail between your legs

— see 1tail
2 leg /ˈlɛg/ verb
legs; legged; legging
2 leg
/ˈlɛg/
verb
legs; legged; legging
Britannica Dictionary definition of LEG

leg it

chiefly British, informal
: to run fast especially in order to get away from someone or something

leg out

[phrasal verb]
leg out (a hit) also leg (a hit) out baseball, informal
: to successfully complete (a hit) by running fast