move forward on the hands and knees or by dragging the body close to the ground

they crawled from under the table

behave obsequiously or ingratiatingly in the hope of gaining someone's favour

a reporter's job can involve crawling to objectionable people

be covered or crowded with (insects or people), to an extent that is objectionable

the floor was dirty and crawling with bugs

(of a program) systematically visit (a number of web pages) in order to create an index of data

its automated software robots crawl websites, grabbing copies of pages to index