Angry drunk hit bouncer - do this and there's no going back (5,3,7)
I believe the answer is:
cross the rubicon
'do this and there's no going back' is the definition.
I know nothing about this answer so I cannot judge whether it can be defined by this definition.
'angry drunk hit bouncer' is the wordplay.
'angry' becomes 'cross' (cross can mean annoyed or angry).
'drunk' indicates anagramming the letters.
'hit'+'bouncer'='hitbouncer'
'hitbouncer' is an anagram of 'therubicon'.
'cross'+'therubicon'='CROSS THE RUBICON'
Can you help me to learn more?
(Other definitions for cross the rubicon that I've seen before include "to commit oneself?" , "take fateful step" , "burn bridges" , "make a commitment" , "Go over border river" .)