b omb . ▁ ▁Trans ition ▁holds ▁Some ▁holds ▁are ▁meant ▁neither ▁to ▁pin ▁an ▁oppon ent , ▁nor ▁weak en ▁him ▁nor ▁force ▁him ▁to ▁submit , ▁but ▁are ▁intended ▁to ▁set ▁up ▁the ▁oppon ent ▁for ▁another ▁attack . ▁ ▁Arm ▁w rench ▁The ▁wrest ler ▁takes ▁hold ▁of ▁the ▁oppon ent ' s ▁arm ▁or ▁w rist ▁and ▁turns ▁around ▁completely ▁while ▁tw isting ▁the ▁arm ▁over ▁the ▁wrest ler ' s ▁head , ▁resulting ▁in ▁the ▁oppon ent ' s ▁arm ▁being ▁w rench ed . ▁This ▁may ▁lead ▁to ▁an ▁arm bar , ▁a ▁w rist ▁lock , ▁the ▁wrest ler ▁pulling ▁the ▁oppon ent ▁onto ▁his ▁shoulders ▁in ▁a ▁fire man ' s ▁carry , ▁an ▁Irish ▁wh ip , ▁or ▁a ▁short - arm ▁man eu ver , ▁such ▁as ▁a ▁clothes line . ▁ ▁But ter fly ▁Also ▁referred ▁to ▁as ▁a ▁reverse ▁nel son ▁and ▁double ▁under hook . ▁The ▁wrest ler ▁and ▁the ▁oppon ent ▁begin ▁facing ▁one ▁another , ▁with ▁the ▁oppon ent ▁bent ▁over . ▁The ▁wrest ler ▁approaches ▁the ▁oppon ent ▁and ▁reaches ▁under ▁the ▁oppon ent ' s ▁shoulders , ▁then ▁threads ▁their ▁arms ▁up ▁and ▁around ▁the ▁oppon ent ' s ▁tor so , ▁with ▁their ▁hands ▁meeting ▁in ▁the ▁middle ▁of ▁the ▁oppon ent ' s ▁back ▁or ▁neck ▁( ess entially ▁an ▁invert ed ▁full ▁nel son ▁hold ), ▁and ▁t uck ing ▁the ▁oppon ents ▁head ▁in ▁their ▁ar mp it . ▁The ▁hold ▁itself