Motion diagram. A Deaf-recorded clip from the PopSign corpus (CC BY 4.0) exists for this sign and can be placed here.
TOOTHBRUSH
“toothbrush”
How to make it
Scrub your index finger side to side across your front teeth.
Where the sign comes from
IconicThe sign visibly depicts its meaning — a present-day resemblance, not a historical claim.
Brushing. The finger stands in for the brush.
Sources
- ASL-LEX (iconicity)Sehyr, Zed Sevcikova, Naomi Caselli, Ariel Cohen-Goldberg, and Karen Emmorey. "The ASL-LEX 2.0 Project: A Database of Lexical and Phonological Properties for 2,723 Signs in American Sign Language." Journal of Deaf Studies and Deaf Education 26, no. 2 (2021): 263–277. link
The sign, taken apart
Every ASL sign is built from a handshape, a place it's made, and a movement. Learn to see these three and you can read and store any sign.
Location
Mouth
Made at the mouth.
Movement
back and forth
One-handed.
Repeated. Palm facing down.