scud (v.)

"to move quickly," 1530s, of uncertain origin, perhaps a variant of Middle English scut "rabbit, rabbit's tail," in reference to its movements (see scut (n.1)), but there are phonetic difficulties. Perhaps rather from a North Sea Germanic source akin to Middle Low German, Middle Dutch schudden "to shake" (see quash). Related: Scudded; scudding. As a noun from c. 1600, from the verb. It also was the NATO reporting name for a type of Soviet missile introduced in the 1960s.

Others are reading

Definitions of scud from WordNet
scud (v.)
run or move very quickly or hastily;
Synonyms: dart / dash / scoot / flash / shoot
scud (v.)
run before a gale;
Synonyms: rack
scud (n.)
the act of moving along swiftly (as before a gale);
Synonyms: scudding