The sign for "rude" is done by holding out the non-dominant flat hand, palm up. The dominant hand is in a "25"-handshape (which is a "5"-handshape with the middle finger extended at the knuckle). Slide the tip of the dominant hand middle finger forward over the length of the non-dominant palm.
RUDE:
Animation: RUDE
Note:
If you do the sign RUDE with the non-dominant hand palm down, it instead means "naked/empty/available."
Memory aid: "It is rude to go to class naked."
(Which I have yet to do mind you. I'm just saying.)



