It means to "take a stand". Be ready to defend your position.
He might tell them to reach deep, dig in their heels, and focus on the goal.
It depends what heels you mean, high heels, or actuall heels on the back of your feet? If you mean high heels, try some high street stores lots of shops have them :)
head over heels
Dig your heels in,point your toes out,keep your free hand in the air and hold on!
If you are cooling your heels, you are sitting down waiting for something because your heels are off the ground in the air.
If you mean Aron, it learns Dig by using the TM28. If you mean, Aggron, it can also learn Dig by using the TM28. They both cannot learn Dig naturally by leveling up.
If you mean the brain teaser/riddle where the word head is above the word heels then the answer is head over heels.As in the phrase, "Head over heels in love".
If you mean the division, they are in Division I and play in the ACC.
Your heels are the back parts of your feet - close to the backs of your feet. Normally used when one is being chased down. i.e. The police were close on his heels.
The verb dug is the past tense of to dig, and the present tense would be "digs."
Verbdig = grabenNoundig = Grabung
that you are refreshed