Chubbing: Verb
To chub is to squish usually 2 surfaces together, create a seal & then attempt to create as much of a suction effect by pulling away without breaking the seal until the seal breaks. Usually done with ones 2 hands or with ones ear & any smooth enough surface. Creates a specific noise & sensation; can be addictive. Chubbing is the present tense version.
Why is your child chubbing my leg?
Why do I hear weird kissing noises? Fred's chubbing himself again.