1
general::
Move by twisting and turning or winding in and out, as in The motorcycle wove in and out of traffic, leaving us far behind. This expression is a redundancy, since weave literally means "intertwine strands of thread."
American Heritage Idioms
2
general::
Phrase(s): weave in and out (of something)
Fig. to move, drive, or walk in and out of something, such as traffic, a line, etc. • The car was weaving in and out of traffic dangerously. • The deer ran rapidly through the forest, weaving in and out of the trees.
McGrawhill's American Idioms And Phrasal Verbs