Invertiberk 

Doing the berney and the jerk while your feet are inverted.

Craig is beast at the invertiberk.

Invertiberk by wtwtawteyeyr June 6, 2011

Invertibral 

invertibral
(adj.) When someone folds like a lawn chair under even mild pressure. Lacking spine, structure, or self-respect. Pretends to have principles but can’t hold a line if their life depended on it.

Examples:

“He went all invertibral the second she raised her voice.”

“Their whole response was invertibral—word salad with no guts.”

“Classic invertibral move: apologize without meaning it and blame someone else.”

"The invertibral waiter gave the intolerable patron a hand job under the table, he found it impossible to challenge a harsh demand"

See also: spineless, weak-willed, bootlicker.

Because of his invertibral nature, he declined the challenge and stood cowering in the corner.

Invertibral by FlagrantRestraint May 31, 2025