Not P but Moby-Dick (64)

[Mike Jing]

>From Chapter 81:

Even now, when the boats pulled upon this whale, and perilously drew over
his swaying flukes, and the lances were darted into him, they were followed
by steady jets from the new made wound, which kept continually playing,
while the natural spout-hole in his head was only at intervals, however
rapid, sending its affrighted moisture into the air.

What does "drew over" mean here?