sod

surface layer of ground containing a mat of grass and grass roots

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"

someone who engages in anal copulation (especially a male who engages in anal copulation with another male)

an informal British term for a youth or man; "the poor sod couldn't even buy a drink"

cover with sod