Alternative form of that's something

obstructing, blocking, or impeding the movement or line of sight of something.

Alternative form of something is up

(informal) Something exceptional, out of the ordinary, unusual. / (informal) A person or thing that is outstandingly bad. / Another unspecified item, perhaps not yet known or decided upon.

(degree, colloquial, idiomatic) Intensely or extremely; badly; in the worst way.

(euphemistic) A condom.

(idiomatic) Doing something mischievous or scheming.

Something unspecified or indeterminate, or whose name is forgotten or immaterial.

(degree, colloquial) To an extreme extent; badly, violently.

(degree, colloquial) To a considerable degree; badly.