Entry: veronica (n.)
In context: "A man in a car coat made a smell-face and did a kind of artful veronica to let the two of them career past."
Definition: In Bullfighting, a movement typical of the first tercio in which the matador swings the cape in a slow circle round himself in order to persuade the charging bull to follow the movement of the cape.
Other: I was sort of hopeful that I'd found a typo and that 'careen' might be what DFW meant. Nope:
career (v.): o gallop, run or move at full speed.
SNOOT score: 1
Source: Oxford English Dictionary