A dab is a small amount or drop of something, like paint or sauce.
When people say "dab," they often mean to gently put a small amount somewhere, usually with a single touch. You might dab perfume on your wrist, dab oil on a cut, or even dab at tears that are falling. Sometimes you'll see people doing the Dab dance, where they move their arms and upper body in a funky way, often as part of a celebration or to add some humor to a situation.
(transitive) To press lightly in a repetitive motion with a soft object without rubbing.
Example: I dabbed my face with a towel.

What does a dab look like? Is that a dab? Is that a bitchy dab? That looks good. That's me being old bitch. That looks great. Okay, fine. That looks great.
20:07Okay. It's a little bitchy dab. It's not a shy dab, but it's a dab. Cheers, Elizabeth Olsen. What a ride. This has been great, thank you. Thank you.
20:17