You will more than likely catch some grief about your questions, but then again I may be wrong. I'm kinda of scratching my head on your questions myself, but I will act as if you are serious, and try to answer them.
1. Tanker Yanker. Is someone that hauls a tanker. No, nothing bad about it.
2. Load locks. Those are used in dry vans and reefers. You will not need one in a tanker. A load lock is a long bar used to prevent freight from falling over.
3. Logbooks. If you are paid by the hour, and do not exceed a 100 mile air mile radius, then you won't need to do a log, unless you exceed 12 hours working time in a 24 hour period. But, you will need to punch a time card, or keep a time sheet. Otherwise, you will need to fill out a log daily. You will be trained on this at school.
4. Tanker drivers hang out. I hang out at home, when I'm not at work. Can't speak for other tank drivers.