Tweak

The AHD defines "tweak" as a verb and a noun. Defined as a verb tweak may mean " to pinch, pluck, twist sharply; to adjust, or fine tune." It may also be used " to make fun of; tease." When defined as a noun, tweak is "a sharp twisting pinch, or as a teasing action; joke." "Tweak" originated from the Old English word twiccian, and came through Middle English via twikken from the variation twick before becoming its modern day form.