POW and POWOO for Sudden Impact
POW and POWOO show sudden impact, surprise, a hit, a boom, or a sudden mental blank.

Learn It
Start with the simple version, then practice it with real signs.
POW is a sudden mouth shape. It can match a hit, burst, impact, explosion, or sudden event.
POWOO can show a stronger or more drawn sudden effect, such as being shocked or suddenly forgetting.
Use these in stories when something happens fast and the viewer should feel the impact.
Try It
Practice slowly. Make the mouth shape at the same time as the sign.
- Sign with POW at the crash moment.
- Sign BLOW-UP with POW.
- Sign with POWOO.
Simple Examples
Read the ASL line first. A dark green pill names the mouth shape, not an extra sign.
Common Mistake
Do not stretch POW across a whole sentence. It belongs at the sudden moment.
A little more grammar
Impact mouth morphemes are useful in storytelling because they make timing visible. The hands show what happened; the mouth shows the sudden force.