Sentence:  <WSD>Hedgehogging</WSD> means — let us call a spade a spade  —  that we're were encircled: It's something that has been forced upon us, a predicament from which we ought to try to escape as fast as possible. 
Meaning of the word marked with <WSD> tags:  To make use of a hedgehog barricade as a defensive maneuver.