encounter means in slang: You may unexpectedly encounter or face something hostile or difficult. (in Slang Dictionary, added by Procrypsis)

What else does encounter mean?

Meeting, particularly one unplanned or unexpected. (in Merlin Dictionary)

An adversarial or hostile confrontation (in Merlin Dictionary)

Meet, particularly unexpectedly. (in Merlin Dictionary)

Confrontation in combat or competition (in Merlin Dictionary)

Experience or be. (in Merlin Dictionary)

It is to meet unexpectedly. (in Merlin Dictionary)