Cump

1. An insult to a person, preferrably a best friend who is male, when they are below you in any kind of status, but still proceed to talk as if they are above you

2. A shortened version of cum dumpster

1. My friend is such a cump, since he doesn't want to admit that I'm better than him

2. Stacy seems like she is a good student, but she might be a cump for all we know.