sod
     n 1: surface layer of ground containing a matt of grass and grass
          roots [syn: {turf}, {sward}, {greensward}]
     2: an enzyme that catalyzes the conversion of superoxide into
        hydrogen peroxide and oxygen; "oxygen free radicals are
        normally removed in our bodies by the superoxide dismutase
        enzymes" [syn: {superoxide dismutase}]
     3: someone who engages in anal copulation (especially a male
        who engages in anal copulation with another male) [syn: {sodomite},
         {sodomist}, {bugger}]
     4: an informal British term for a youth or man; "the poor sod
        couldn't even buy a drink"
     v : cover with sod
     [also: {sodding}, {sodded}]
Source: WordNet® 2.0