Definition of crawls:
(v) :
(intransitive) To creep; to move slowly on hands and knees, or by dragging the body along the ground.
(v) :
(intransitive) To move forward slowly, with frequent stops.
(v) :
(intransitive, transitive) To swim using the crawl stroke.
(n) :
A rapid swimming stroke with alternate overarm strokes and a fluttering kick.
(n) :
The act of moving slowly on hands and knees, etc.
(n) :
The act of sequentially visiting a series of similar establishments (i.e., a bar crawl).