(chiefly Canada, US, colloquial, mildly vulgar) Of very poor quality; unpleasant; distasteful. / (chiefly Canada, US, colloquial, mildly vulgar, especially with feel) Bad, sick, or depressed.

(rare outside entomology) The mesial plane dividing the body into similar right and left halves.

(pharmacology) A 4-phenylpiperidine derivative related to pethidine.

(obsolete) A little spade.