visit, visitation – A visit is an instance of visiting; a visitation is an act of visiting, and carries the connotation of an unexpected or undesired occurrence. More…
October surprise – An unexpected, but popular, political act made just prior to a November election, in an attempt to win votes. More…
off the wall – Alludes to squash or handball, when a shot comes off the wall at an unexpected or erratic angle. More…
wrong-foot – To disconcert by doing something unexpected. More…