Caught napping and Off-the-wall

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

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

Caught napping and off-the-wall are semantically related. Sometimes you can use "Caught napping" instead an adjective phrase "Off-the-wall".