Constipation
Technically, constipation is defined as having less than three bowel motions each week. The frequency of "going" varies greatly from person to person. While some people go to the bathroom multiple times each day, others only do it once or twice per week. As long as you don't deviate too much from your pattern, whatever your bowel movement pattern is, it's particular to you and normal.
Whatever your bowel habits, one thing is certain: the longer you wait to "go", the harder it is for stool or poop to pass. Other important characteristics that typically characterize constipation include dry, hard stools, painful bowel movements, difficult stools to pass, and the perception that your bowels are not completely empty.