Military jargon: a high and tight haircut.
So named because, after weeks in the field, one's hair grows out, one's skin is tan, and the areas exposed by your first "high and tight" after returning are fishbelly white. This gives one's head the look of a whitewalled tire. Surprisingly, it doesn't make the soldier, airman, Marine, or sailor in question look like a dork, but serves to make them look even more hardcore and high speed.