A jig is indeed a lead head, but when refering to large mouth bass, it also means skirted lead head ( ususally in dark colors ). Tipping or trailing is to put something on it to increase size and appearance. IE, crawfish, frog cut out, pork tail etc.
Booyah is a manufacturer of lures, they produce jigs, spinner baits, and a few other things.
When you jig for bass, you toss a leadhead hook with skirt and weed guard into heavy cover usually near the edge of the water. Like cypress knees, weed beds stumps, logs, etc. then bounce it a softly a little, then move it about six inches, then bounce again.. do this until you are just about 2 or 3 feet from teh cover, retrieve, move on to the next hole and repeat as needed.
Not sure what a brute force lure is, but a finess worm is a semi floating rubber worm that is fished either by drop shot or without a weight like a jerk bait. Cast, and just tip it along and it'll bounce and dart side to side and use much its own action. It's fished slow and usually used to tease cold water bass into striking, or lathargic bass into action.
Hope this helps
rye