trick or treat(n = noun.communication) Array - a request by children on Halloween; they pass from door to door asking for goodies and threatening to play tricks on those who refuse; Array
is a kind of asking, request

card trick, confidence trick, conjuring trick, dirty trick, do the trick, dutch treat, hat trick, magic trick, play a trick on, robert treat paine, treat, treat with, trick, trick out, trick up, turn a trick, turn the trick