scratch an itch

chicken scratch

Cramped or illegible handwriting.

itch the ditch

To masturbate by stimulating one's vagina.

make someone's teeth itch

To bother or unsettle a person; to put someone on edge.

scratch beneath the surface

To look or see beyond what is obvious.

scratch by

To get by; to make ends meet.

scratch one's head

To puzzle, ponder, or wonder about something.

scratch one's own itch

To do something out of motivation to solve a personal problem; to take matters into one's own hands.

scratch that

To disregard, omit, or ignore the previous statement.