This freakin awesome company is behind several video so popular that the very video is a obscure reference (the billy goat caller as apposed to "billy goat!")
He has produced award winning animations on newgrounds (see SPIDER POWERS FOR CHRISTMAS)
as well as Many sketches (Cowboy Ghost) or full length epics (Kenny B...) on youtube.
And a few songs (Cat on the piano)
A list of obscure references is listed below
IM A FIREN MAH LAZAH BLAHHHHHHHHH
IM A FIREN MAH
That MYSTERIOUS THING
Billy goat caller(s)
Im going to eat your toes while your sleeping!
A regular nothing special chump.
Mr.Titan- BOW WOW WOOF
Plus many more that Dfear Studios has made over the years