Off-the-wall and Spacy

Off-the-wall adjective - Different from the ordinary in a way that causes curiosity or suspicion.

Spacy and off-the-wall are semantically related. In some cases you can use "Spacy" instead an adjective phrase "Off-the-wall".

Spacy adjective - Stupefied by (or as if by) some narcotic drug.

Off-the-wall and spacy are semantically related. Sometimes you can use "Off-the-wall" instead an adjective "Spacy".