A slap is a sharp and sudden hit with the flat part of your hand.
When people talk about slapping something or someone, they often mean giving it a quick and forceful tap. You might see this in sports where a referee gives a player a yellow card for unsportsmanlike behavior - that's a kind of slap on the wrist, reminding them to behave properly. In everyday conversation, you might hear someone say "I got slapped with a big fine" when they got caught speeding or broke a rule. This use of "slap" implies a penalty or a warning, but it's not usually meant to be taken literally - no one actually gets hit. You might also see "slap on the back" used as a friendly way to congratulate someone, like when you win an award.
A blow, especially one given with the open hand, or with something broad and flat.
To give a slap to.
Example: She slapped him in response to the insult.
Exactly, precisely
Example: He tossed the file down slap in the middle of the table.
