1)
The dangerous, cancer causing chemical that is being used to
dissolve the GOM oil spill and cause it to become one with the water that it pollutes. Corexit visually masks the oil spill from detection on the surface of the water.
2)
Corexit is also a short form (or acronym) of the two words; Corporation and Exit, as in, after the chemical Corexit is used, it enables the responsible CORporation to EXIT the area without being held financially responsible for the long term environmental damage that it causes.

A person with an outwardly dominant, masculine, or aggressive personality, but who also enthusiastically takes on the submissive or "bottom" role in the bedroom.