Sorbing means absorbing or soaking up something, like a sponge soaking up water.
Sorbing is like taking something in and making it a part of something else.
Examples:
The paper towel is sorbing the spilled milk.
The plant is sorbing water from the soil.
She is sorbing all the knowledge from the books.
The sponge is sorbing all the soapy water.
The desert is sorbing all the heat from the sun.
The hungry caterpillar is sorbing all the leaves from the tree.