bob under

English

Verb

bob under (third-person singular simple present bobs under, present participle bobbing under, simple past and past participle bobbed under)

1. (intransitive) To go suddenly under the surface of a body of water after a period of floating.

   I tracked her with my eyes until she bobbed under before the rescue boat got there.

2. (transitive, intransitive, by extension, figurative) To go under the surface or edge of something.

   He bobbed under the blanket.