Maybe you, or a beginner that you know, has also misinterpreted these?
(And maybe you don't agree with my revised interpretations!)
Interlock grip - at first I thought that meant fingers really, er, interlocked, i.e. meshed together tightly, resulting in a very weak left hand and inflexible wrists. In reality it's more just "in between" than "inter locked"!
Grip the club as if you were holding a baby bird - well I've never held a baby bird, but I took this to mean a very light and therefore loose grip. I now think it means a grip that is gentle but immovable - maybe like you'd hold a small child's hand while crossing the street.
Restrict the hips - doesn't mean prevent your hips from moving - I think means feeling a connection through your core like you would if you were restricting your hips.
Lead with the hips - doesn't mean that your hips lead in the sense of going out first, like a dog on a leash! Actually means more like the way a horse leads a carriage. They both start moving at the same time, but the horse provides the force.
Make a full turn - doesn't mean turning around and away from the ball - really just means remembering to turn your shoulders rather than just using your arms.
Weight shift - doesn't mean mass (body) shift! It means moving your weight in the physics sense of weight (force), e.g. putting more pressure through the leading foot through impact.
Maintain lag - doesn't mean trying to actually hold (maintain) the lag using your wrists. It just means do other things, e.g. accelerating through impact, that cause lag to be maintained.
Can anyone offer up other examples of misinterpreted tips and advice?