To completely give up or put off

forget it; never mind it

just like "fuck it"

To refuse an idea or statement.

its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school its school

for no particular or important reason.