dʒˈɜːbɚɹ ɪz ɐ dʒˈʌmp bˈɪd tə fˈoːɹ jˈuːzd ˈæftɚɹ ɐ nˈɑːtɹʌmp ˈoʊpənɪŋ bˈɪd ænd ˌɔn ˈʌðɚɹ əkˈeɪʒənz baɪ pˈɑːɹtnɚʃˌɪp ɐɡɹˈiːmənt.
Gerber is a jump bid to 4 used after a notrump opening bid and on other occasions by partnership agreement.