yank = person from the States

there are some differences between these words , which are : Yank : (informal) to pull someone/something hard, quickly and suddenly: e.g : He yanked her to her feet i yanked the door open. Tug: to pull sth hard, often several times: e.g : She tugged at his sleeve to get his attention. (figurative) a sad story that tugs at your heartstrings (= makes you feel sad) Haul : to pull sth/sb with a lot of effort: e.g : The wagons were hauled by horses. He reached down and hauled Liz up onto the wall. Source : Oxford Advanced Learner's Dictionary

Yank means pull, or move with a sudden movement Tug means pull hard,Struggle in opposition,Carry with difficulty Haul means Transport in a vehicle. cowboy...

I'd say please give it a tug, but i'd never tell her to yank it or haul it. lol :P

They all mean to drag or tow.