In the video, Toby states that his inspiration for the lyrics in the song came from a realization that the world needed a song about a nugget in a biscuit and then dipping the whole thing in mashed potatoes. The barbeque sauce was just an extra, ad-libbed lyric.
The lyrics are
Chicken.... Nugget, biscuit, nugget in a biscuit Nugget, biscuit, nugget in a biscuit Nugget, biscuit, nugget in a biscuitDip it all in mash potatoes
Dip it all in mash potatoes... Then Dip the mashed potato covered chicken nugget biscuit in the BBQ Sauce
Yum, yum, gimme some!
The money earned by iTunes sales of the song was used to replace his computer that died sometime between the 18th and the 24th of September, 2011. Although the new computer has long since been bought, the song is still available on iTunes and is on YouTube in both Regular versions and 10 hour loops.