1 noun (C)
1 a long thin creature with no bones and no legs that lives in soil
2 someone who you do not like or respect
3 have worms to have parasites (=small creature that eats your food or your blood) in your body
4 the worm turns literary used to say that someone who is normally quiet and obedient will change if they really need to
—see also: can of worms can 2 (4) 2 verb (T)
1 worm your way into/through etc to move through a small place or a crowd slowly, carefully, or with difficulty: They wormed their way through the crowd.
2 worm your way into sb's affections/heart/confidence etc to gradually make someone love or trust you, especially by being dishonest
3 worm sth out of sb to get information from someone who does not want to give it
4 worm your way out of (doing) sth to avoid doing something that you have been asked to do by making an excuse that is dishonest but clever: Steve has managed to worm his way out of going to the meeting.
5 to give an animal medicine in order to remove parasites (1) that live inside them

Longman dictionary of contemporary English. 2004.