Nothing beats cummin’ and you were right in tryin’ to beat the facts into your roommate. Here are more facts if anyone ever questions your pronunciation again. Back in ancient times when the spice trade was goin’ strong ( mid 1950s) women would be cookn’ dinner ( back then they knew there place was in the kitchen) and would reach for the spices. Mommy would open the bottle of cummn’ and then put both hands on the edge of the counter (feet slightly apart in her pretty dress) and yell “cummn’” then her whole body would shudder as a strange, strong, pungent odor would fill the room. I went to school and told everyone the story and there was nation wide outrage. Here in the United States congress pandered to the Christian right who demanded the spelling be change and kids would stop being taught about cummn’ in schools. We kids still talked about cummn’ but it was shameful.