to move slowly on hands and knees or by dragging the body using the arms

to move or progress slowly or laboriously

said of a plant: to creep

(often + with) to be alive or swarming with creeping things, or as if with creeping things

The path was crawling with ants

to have the sensation of insects crawling over one

It made her flesh crawl

informal (often + to) to behave in a servile manner

He'll just go crawling to the boss as usual

the fastest swimming stroke, executed lying on the front and consisting of alternating overarm strokes combined with kicks with alternate legs