"Swigging" Natural Recordings by Native Speakers
Swigging refers to taking a swig of a drink, typically a liquor or a potion, by bringing the liquid to the mouth and drinking it in one swift motion, often from a bottle or a container.
"Swiftest" is an adjective that means moving or happening quickly; rapid. It is the superlative form of the word "swift", indicating the highest degree of speed or rapidity.
There is no word "swimbel". However, I'm assuming you might be referring to the word "swim" which means to move through the air or a liquid (such as water) using someone's arms and legs in a specific way.