Someone who supervises workers, especially one who imposes hard or burdensome work. / (figuratively) A source of hard work or responsibility.

plural of call

Relating to the secretion of mucus

(intransitive) To hang or droop; to adopt a limp posture / (intransitive) To walk in a clumsy, lazy manner. / (transitive) To cause to hang down or droop; to depress.