Dipwad means: A mildly vulgar American insult for someone who is annoying, foolish, and generally hard to be around - a more colorful variant of 'dipstick' or 'nitwit.' The '-wad' suffix implies someone whose. It carries sexual or vulgar connotations; not alarming on its own but worth understanding the context your teen heard it in. If your teen uses it, context will usually make the intent clear. A short, curious question about where they heard it is usually all that is needed to know whether to follow up.