The expression "copped some ze" is an informal slang term that is often used to describe someone who has taken drugs, particularly cannabis. There are many different synonyms that can be used to replace this phrase, depending on the context and the specific substance in question. Some of the most common phrases used to describe drug use include "got high," "smoked up," "took a hit," "got stoned," "got baked," "took a toke," "ate an edible," and "did a line." Each of these phrases can convey a slightly different meaning or connotation, so it is important to choose the right one based on the situation and the audience.