勃起 Traditional form: 勃起 Pinyin (reading): bóqǐ Definitions: erection to have an erection Characters: 勃 - thriving, prosperous; sudden, quick 起 - to begin, to initiate; to rise, to stand up Traditional characters: 勃 - thriving, prosperous; sudden, quick 起 - to begin, to initiate; to rise, to stand up