Linguistic Efficiency

A roommate of mine doesn't pronounce every part of three syllable words. Think about it. The time we could save by axing that third syllable. Linguistic efficiency. For example, why say a whole word like 'computer' when you can just shorten it to "-puter"? Is my roommate an excentric Cosmo Kramer? Brian Reagan? No. He's five years old. But, I still think he's on to something worth considering in the English language.