forcing out,
ejection,
expulsion,
projection the act of forcing out someone or something; "the ejection of troublemakers by the police"; "the child's expulsion from school"
Spitting or expectoration is the act of forcibly ejecting saliva or other substances from the mouth. It is currently considered rude and a social taboo in many parts of the world including the West, while in some such as China it is considered more acceptable. It is possible to transmit infectious diseases in this way.