the world > movement > motion in a certain direction > movement towards a thing, person, or position > meeting or encounter > meet or encounter [verb (intransitive)] > specifically of people > face to face (2)
to run into another's mouth: to meet another face to face or full face (also figurative); also to meet another in the mouth. Obsolete.
to run into another's mouth: to meet another face to face or full face (also figurative); also to meet another in the mouth. Obsolete.