"Barbwire" refers to a type of strong wire that has sharp spikes or barbs sticking out from it. It is often used on fences or walls to prevent animals or people from getting through or entering. Full definition
Say if Im doing barbwire pushups and I exceed the 15 - 20, how would I make that more challenging? (ashotofadrenaline.net)
But for example if i do barbwire pushup until 50 times and then i get tired and can't continue my workout, how about that? (ashotofadrenaline.net)
Look, however, in Kapò, at the shot in which [Emmanuelle] Riva commits suicide by throwing herself on the electrified barbwire fence; the man who decides, at this moment, to use a forward tracking shot in order to reframe the corpse from a low - angle, while taking care to inscribe the raised hand exactly within the final framing, this man deserves nothing but the most profound contempt. (sensesofcinema.com)