In your opinion, what does "Bazinga" mean?

it's sheldon's "catchphrase". its his way of saying "gotcha" when he pulls a prank (in that episode he kept saying it in the ballpit bc leonard couldnt catch him). he's so socially akward, that its his way of telling ppl "i just pulled a prank on u" (in fact, a lot of the times, he says "bazinga, i see u've fallen for another 1 of my clic pranks")