In the airman's lingo there is a slang word (now a term) for a plane in the
rear protecting the tail of the forward aircraft by zigzagging on the course
('weaving'). This plane is called a 'weaver'.
After some training exercise as a weaver the ser-geant was asked by his commander:
"Where did you learn to weave so well, O'Brien?"
"When a boy I used to follow my old man returning home on Saturday nights
from bars."