Quick Definition: To lead a woman to one’s house for the purpose of having sex.
Pulling usually refers to getting a girl to go home with you on the first meeting, as opposed to after a day 2. Pulling requires one to build up a lot of sexual tension, as well as a certain degree of trust and comfort. Many PUAs consider pulling to be the gold standard of pickup, since it does not require futzing around with phone game and day 2s.
Pulling is chiefly a British term, although it is used by PUAs in the US as well. Pull, as it is generally used, is synonymous with fclose, but in some cases it refers only to the physical act of leading a woman to the sex location, with no guarantee of actual sex.