To take, steal, or pilfer something seen as unused, under the thief's belief they
will make good use of it. Thought of as a euphemism to avoid guilt by believing the
victim will not miss the item (or, if discovered, appreciate the
act's necessity).
"He has a whole
box of Pop Tarts, there's no harm if we necessitake a few."
"Who necessitook the flash
drive that was on the counter? I need it back,
please..."