What happens as you drink through a straw?

Drinking alcohol through a straw may slow down the rate at which you consume alcohol (depending on how you normally drink), but it will not change how the alcohol is processed in the body. As a result, drinking alcohol through a straw will not make a person any more or less drunk than drinking the alcohol regularly. (Assuming the amount of alcohol consumed is equal in both circumstances and the length of time in both circumstances is also equal.) The only time drinking alcohol through a straw would be faster than regular alcohol consumption is if you merely sip alcohol regularly. One can always chug a drink faster than one can sip it through a straw.

Also, drinking anything through a straw will not mix the drink with air. The only time the liquid passing through a straw has air bubbles in it is when there is too little liquid in the container to adequately cover the end of the straw submerged in said liquid when suction occurs. Even if you do drink most of your drink and you intake the last little bit with some air bubbles, the alcohol will not mix with the air. And even if it did mix with the air, there's no reason why the air-alcohol mix would get anywhere near the nasal cavity. And there's no reason why the nasal cavity would absorb the alcohol any faster than your digestive tract.