I'm going to lie to my mom
Why do you want to lie to her?
I think if I can get away with it now I will have a reason to lie at a later time to my parents.
It is not good to lie to your parents. They have your best interest at heart, lying to her for the sake of lying is wrong and can cause problems you didn't think of.
Whatever man.
If you lied to your mom and she finds about it later she'll have hard time to trust you anymore even if you're telling the truth. There is always a good reason to lie but there's always a better reason not to lie.