piss-up vs bust

piss-up and bust both are nouns.

Word	Noun	Adjective	Verb	Adverb
piss-up	Yes	No	No	No
bust	Yes	Yes	Yes	No

As nouns, bust is a hypernym of piss-up; that is, bust is a word with a broader meaning than piss-up:

Other hypernyms of piss-up include binge, bout, tear.

piss-up (noun)	bust (noun)
vulgar expression for a bout of heavy drinking	an occasion for excessive eating or drinking
	a sculpture of the head and shoulders of a person
	the chest of a woman
	a complete failure

piss-up (adjective)	bust (adjective)
	lacking funds

piss-up (verb)	bust (verb)
	break open or apart suddenly and forcefully
	go to pieces
	ruin completely
	separate or cause to separate abruptly
	search without warning, make a sudden surprise attack on