私奔的拼音缩写是SB
[sī bēn de pīn yīn suō xiĕ shì sb]
A literal interpretation might suggest a pun using Chinese pinyin initials: 'Si Ben (私奔)’ meaning eloping has the abbreviation ‘SB’ that unfortunately can be misinterpreted in internet slang or casual context where ‘SB’ could carry another derogatory meaning.