top-heavy

adjective5

1. •
   having a high centre of gravity, and liable to topple

   • Legion: Your new platform is inefficient. It has low-volume hydraulics and is top-heavy. — 2012
2. •
   having a disproportionately large upper body, especially the bust

   • "My figure is topheavy, and I always thought a woman with a large bust had to look mature. Now I know better." An all-in-one girdle is a lifesaver for women like Miss B. — 1941
3. •
   having an excessive number of administrators or managers
4. •
   Having a significant portion of the plan assets allocated to key employees to the detriment of lower-wage employees.

   • A defined benefit plan is top-heavy if[…] the present value of the accrued benefits (PVAB) under the plan for the key employees exceeds 60 percent of the PVAB under the plan for all employees. — 2017
5. •
   (slang) Drunk.

   • He who confines his drink to the same level as that of the poor unreasoning soul-less animals, who never take too much and are never “top-heavy,” cannot avoid irritation. — 1886