bust

1 bust /ˈbʌst/ noun
plural busts
1 bust
/ˈbʌst/
noun
plural busts
Britannica Dictionary definition of BUST
[count]
1 
: a sculpture of a person's head and neck and usually a part of the shoulders and chest
2 
a  : a woman's breasts
b  : a measurement taken around a woman's chest and back
2 bust /ˈbʌst/ verb
busts; busted also British bust; busting
2 bust
/ˈbʌst/
verb
busts; busted also British bust; busting
Britannica Dictionary definition of BUST
[+ object] informal
1 
: to break (something): such as
a  : to cause (something) to stop working by damaging it
b  : to cause (something) to separate into parts or pieces
2 
a  : to arrest (someone)
b  : to catch (someone) doing something wrong
3 
US, impolite — used in phrases like bust your butt/ass to describe working very hard
4 
US : to hit or punch (someone)

bust a/your gut

— see 1gut

bust out

[phrasal verb] informal
1 
bust out (doing something) : to begin (doing something) suddenly : to burst out (doing something)
2 
bust out (something) or bust (something) out : to take (something) from the place where it is stored so that it can be used
3 
: to escape from a prison, jail, etc.

bust up

[phrasal verb] informal
1 
: to end your relationship with someone
2 
bust up (something) or bust (something) up : to cause (something) to end

or bust

informal
— used to say that you will do everything possible to get somewhere
3 bust /ˈbʌst/ noun
plural busts
3 bust
/ˈbʌst/
noun
plural busts
Britannica Dictionary definition of BUST
[count] informal
1 
US : a complete failure : flop — usually singular
2 
: an occurrence in which the police catch and arrest people committing a crime
4 bust /ˈbʌst/ adjective
4 bust
/ˈbʌst/
adjective
Britannica Dictionary definition of BUST

go bust

informal
: to spend or lose all of your money : to go broke