To make a whirring or hissing sound, similar to that of an object speeding through the air. / To rush or move swiftly with such a sound. / To throw or spin rapidly. / (vulgar, slang) To urinate.

present participle of repartee

(idiomatic, location) So as to be hidden from plain view (and thus easily ignored or overlooked).

(geography) On this side of. / (chemistry) Forming names of chemical compounds in which two atoms or groups are situated on the same side of some plane of symmetry passing through the compound.