A shield for busy housewives / moms when their on-heat husbands are ogling their breasts to much - or even fondling them - that they can hold up with one hand blocking hubby's line-of site, and leaving the other hand free to finish packing school lunches or get another load of washing going.
"You're nine years old, for pete's sake, you should be able to open a blerry bottle by yourself"
Child feebly struggles with jam jar
"Oh come on, use your strength"
"Oh give it here"
parent impatiently grabs bottle, struggles, cannot budge it, bends over, turns red in the face but can't open it"
"have fishpaste on your toast, this stuff is full of unhealthy sugar"