It's a reference to either:
1. A rocket launcher
2. A helicopter
But also can be used for fun.
Helicopters make a soi soi soi kinda noise so saying pharses like the one in the example explains it, the rofl is added on just to make it seem kiddish and funny.
Eg. My Roflcopter goes soi soi soi soi soi (as you spin around with a rocket launcher or just because helicopters make a soi noise)
6๐ 29๐
To waste time in an entirely, utterly useless, sometimes drug-related or druggie-like manner. To avoid doing work by engaging in excessive procrastination. Based on the popular internet phrase.
After I roflcoptered my entire life away, I became a bum on the street scrounging for money for midget porn and beer.
35๐ 273๐
this elequoent machine flies over your head when you get "smoked" and avery yells "adabadbabdadalalalabdalala" there are many "rofl" things including rofl lobster, rofl pwned, and earthday rofcopter.
Chris: when is this assembly going to end?
Mr. Carlton: whenever you decide to listen and stop yapping.
Avery: AHHHH! ROFLCOPTER ALALALALLALAA
7๐ 41๐
The helicopter that arrives in Call of Duty 4 online play after a play gets a 7 kill streak and calls it into the game
Player #1: w00t w00t, i got 7 killz, my copter will pwn you nubs
Player #2: OH NOEZ!!! SHOOT DOWN DAT ROFLCOPTER
6๐ 39๐
when mosher with a very long ponytail begins to spin their hair wildly like the blades of a helicopter.
Dude look at that guy spinning his hair hes a roflcopter!
7๐ 48๐
A piece of origami with a staple stuck to the tip held by a piece of gum to create a projectile to be thrown at Ceiling tiles.
(see roflcopter picture submitted)
22๐ 206๐
Rolling On The Floor Laughing Cos Of Ptolemy's Trademark Eventful Ramblings
Ptolemy: sometimes I let her whip me...is that to far?
Me: No hahahah ROFLCOPTER!
5๐ 35๐