v (transitive|vulgar|colloquial) To excrete (something) through the anus.
v (transitive|vulgar|colloquial) To fool or try to fool someone; to be deceitful.
v (transitive|vulgar|colloquial|Australia) To annoy.
! (context|vulgar) Expression of worry, failure, shock, etc., often at something seen for the first time or remembered immediately before using this term.