Definition of serve:
"whose serve is it?"
(v) :
to work for; to labor in behalf of; to exert one's self continuously or statedly for the benefit of; to do service for; to be in the employment of, as an inferior, domestic, serf, slave, hired assistant, official helper, etc.; specifically, in a religious sense, to obey and worship; to be subordinate to; to act a secondary part under; to appear as the inferior of; to minister to