F5 Bomb 

F5 Bombing is the act of holding down or rapidly pressing the F5 key in order to refresh the page, and therefore make the view count 'explode,' which is where the "bomb" part comes in.

Often used in forums where the threads have view count (such as 4Chan or Reddit, more commonly Roblox).

Used mostly by trolls, in order to make the view count seem substantially higher than it should be.

It's also a parody of the word F-bomb, which is basically the non-swear version of "fuck."

A: Hey dude, why does this thread have a lot of views compared to the other threads?
B: Someone must've F5 bombed this thread.
A: What a troll."
B: Same.

F5 Bomb by KingKralj March 31, 2017

F5 Bombing 

A tradition on the Roblox forums. As the forums have pathetic software, you can easily do this trick. You go to your/someones topic and hold F5, to make the post get alot of views. This is a form of trolling as popular posts get a star as an icon, which annoys other users on the forum.

Me: Let's F5Bomb some shit!

*Holds F5*

Me: Yay, i held F5!

Someone Else: FFFFUUUU ANOTHER TROLL F5 BOMBING EVERYTHING AARGH REPORT REPORT REPORT

Reporting is reporting someone who spams/posts adult content.

F5 Bombing by WouterVL October 24, 2012