Elevons are aircraft control surfaces that combine the functions of the elevator (used for pitch control) and the aileron (used for roll control), hence the name. They are frequently used on tailless aircraft such as flying wings. An elevon that is not part of the main wing, but instead is a separate tail surface, is a stabilator (but stabilators are also used for pitch control only, with no roll function, as on the Piper Cherokee series of aircraft). The word "elevon" is a portmanteau of elevator and aileron.
Elevons are installed on each side of the aircraft at the trailing edge of the wing. When moved in the same direction (up or down) they will cause a pitching force (nose up or nose down) to be applied to the airframe. When moved differentially, (one up, one down) they will cause a rolling force to be applied. These forces may be applied simultaneously by appropriate positioning of the elevons e.g. one wing's elevons completely down and the other wing's elevons partly down.
Please tell me how we did this,
We got ourselves into such a mess again.
We've fought so long we can't remember what the hell it was all about.
I can't count the times I've turned around, cheated my promises, and sold you out.
How is this not a waste of time, these blind eyes won't see me through.
I'm feeling for a hand to hold me now, lift the veil, see the truth.
There's so much further left to climb, and not one inch has been secure.
I'm feeling for a hand to hold me now, lift the veil and endure.
Be it my dexterity for long-winded alibis,
But excuses came full circle months ago.
I've wanted to walk away, but it can't be right,
To forget the knocking and throw the fight,
Silence the wanting and blackout the firelight.
I'm digging deep to find resolve to change, will to draw lines.
I'm putting old ways to the knife, I'm dying here this time.
Because honestly I can't relate,
While lying to your face every day.
With webs of lies spun to justify all of my failures.
I've realized my heart's content,
I may never see an end.
So when you need me I'll be outside throwing rocks at the moon every night
'til the day I die.