the reason a butterknife is not very sharp is so you can lick them clean without cutting your tongue
i had to reread this thrice before realisimg you mean an actual knife that you smear butter with.
before that i was wondering about how this relates to the spy from team fortress 2, lol
the spy uses a butterfly knife
did you misread and/or do you not call the kind of knife you use to spread things on bread and, along with a fork, as common cutlery a butterknife when needing to specify from other kinds of knife?
