It can be. It can also be a literal command to place one foot in front of the other and walk forward. As an idiom, it means to take small steps in order to reach a goal.
1. "Idiom" begins with a vowel, so you use the word "AN" in front of it.2. You cannot "do" one because it is a noun and not a verb. The question is unclear. Please rephrase it so that your meaning is more understandable.
It is not an idiom - it is a children's game. Leapfrog is when one child bends over and the other child rests his/her hands on that child's back and leaps over them. The child who leaped then bends over and the first child becomes the "leapfrog." It's when one gets ahead of the other and becomes first. And then the one passed gets in front of the other. And on and on. It can be in business, sports, any situation where two or more go back in forth, each being the leader from time to time.
"Head over heels in love" would be one idiom.
It is an idiom, because one cannot literally be drunk with pleasure, only with alcohol. The key feature of an idiom is that it's not interpreted literally.
WikiAnswers is set up to answer one question at a time. Here is a link to one of your questions, and you can ask the other one separately to get a good answer.
one foot in front of the other
With determination and putting one foot in front of the other
One foot in front of the other
Put one foot in front of the other. Repeat.
it puts one foot in front of the other and walks
put one foot in front of other quickly
By putting one foot in front of the other, repeatedly, very quickly.
By placing one foot in front of the other and repeating.
Put one foot in front of the other.
With one foot behind the other and reaching for your front foot is a good one. there is also the splits BUT DON'T DO IT 'TILL YOUR WARM!!!
A human walks like this; you put one leg in front of the other and then put your weight on the foot in front. Then you do the same with the other leg and carry on!!!!
The literal meaning would be that you have one foot that is "the best" and you're tossing it out ahead of you.