bust out - definition and synonyms

phrasal verb [intransitive] informal
present tense
I/you/we/theybust out
he/she/itbusts out
present participlebusting out
past tensebust out or busted out
past participlebust out or busted out
  1.   From our crowdsourced Open Dictionary
    to do something exraordinarily great

    Mark Zuckerberg busted out some Mandarin in a recent Q&A in Beijing.

    Submitted by Boris Marchenko from Russian Federation on 30/07/2015
See also main entry: bust