Gump and Off-the-wall

Off-the-wall and gump are semantically related. In some cases you can use "Off-the-wall" instead an adjective "Gump".

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

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