To me, the term implies a departure from aircraft building standards, and use of building practices that hold together at 1G with no clue as to the actual stresses the part may need to withstand. Leads to stuff like using sheet-metal screws instead of bolts.
And, as you say, making the plane grossly overweight by using, say, 3/4" plywood where 1/8" is adequate.
In any case, photoshop helps.....
Ron Wanttaja