This Thumbtack

Sketch with chalk
Right to left
Fill the board like Bart Simpson
Etch a Sketch granules
Shake a thousand
Or three years of penance
Elliptical genius
An island like Revis
Concede this
Demeanor
As I crack your bone of femur
Fear this breath
Of comedy
Sire me
Slip your left arm in the sleeve
Part of mythology