It isn't you go and throw grapes whereever you want :)
In addition to the general practice of throwing anything in a classroom being against school rules, grapes are small (hard to see), soft (hard to detect when stepped on), and (when stepped on) considerably slippery: thus presenting a significant risk for dangerous accidents.
Indiscriminate hunting was a past time which would be frowned upon today. Watching wild beast shows in the arenas would also be frowned on.
Excess and individualism were frowned upon.
Excess and individualism were frowned upon.
No, it tends to be frowned upon as it is nasty. Unless you are an elder whom wears a diaper or a small child who wears a diaper, it is frowned upon.
"Frowned upon" means something that is not approved of or looked down upon by society, a group, or an individual. It implies that the action or behavior is disapproved of and may result in negative consequences or judgment.
Yes.
it is frowned upon
Yes, but it is frowned upon in most societies
yes, however, it is frowned upon.
Hopefully not as cannibalism in this society is frowned upon.
Not at all, though it is frowned upon.
They get frowned upon or excommunicated.