1.NounA container for ink, designed and usually positioned so that a person may conveniently dip a pen (such as a dip pen or quill pen) into it whenever a refill is needed.
2.NounA store of ink built into a pen, comprising a tube attached to the tip of the pen.
3.NounEuphemistic form of incel (“a member of an online subculture who define themselves as unable to find a partner”).