Dissolve

Verb | Expression
When you can't explain a certain feeling, but you just wanna disappear from the scene.

When you feel anxious and you want to disappear into the ground/crowd.

Verb | Original
(with reference to a solid) become or cause to become incorporated into a liquid so as to form a solution.

Present Form: Dissolving
Past-Tense: Dissolved
Future Tense: Dissolve

a) "Bye, I'm gonna go dissolve."

"Why are you gonna go dissolve?"

"I failed the test-"

b) As she paced her steps, she dissolved into the crowd, never to be seen again.