She answered the phone and, to her great 'joy', heard her son's voice on the line. [=she felt very happy when she heard her son's voice]
“You've spent hours looking for it. Any 'joy'? [='luck']” “No 'joy' whatsoever, I'm afraid. I can't find it.”
They were 'shouting/jumping for joy'. [=they shouted/jumped because they were very happy]
(..) I had a drunk uncle who did all those things. Nobody sings songs about him. Maybe you'd like it more if you thought of Santa as a superhero and his power is bringing joy to children. My uncle was accused of that, too. It turned out to be legal in Oklahoma. (..)2014 TvShow: The Big Bang Theory Title: The Clean Room Infiltration Season: 8 Episode 11