What does ass clam ass clam mean?

ass clam ass clam meaning in Urban Dictionary

An Assclam may be the stroll people does when they have to go directly to the restroom. Holding their asscheeks firmly together, like a clam. Occasionally snapping all of them together rapidly to avoid smudge markings. An insult to someone whom walks, or acts funny. n. a assclam is a person who, is always incorrect speaks shit and drops on his dick