掐断

掐断	qiā duàn	to nip off (with fingernails etc) / (fig.) to cut off (supply etc) / to disconnect
掐	qiā	to pick (flowers) / to pinch / to nip / to pinch off / to clutch / (slang) to fight
断	duàn	to break / to snap / to cut off / to give up or abstain from sth / to judge / (usu. used in the negative) absolutely / definitely / decidedly