There is currently a thread at the top of General titled "When the GM gips you (a rant)". The word "gip" or "gyp" is a derogatory reference to Gypsies. I think this community can do without such.
It is an established word in the English language. :shrug: I think phrasing something as 'sinister' inaccurately depicts southpaws, which further implies that left-handed people are less than human ('paw' instead of 'hand').