Vamoose!

go away!

Example:

Leave us alone. Vamoose!

veggy, veggie

vegetarian

Example:

She's been a veggie for years.

vent one's spleen

to display one's anger

Example:

Don't vent your spleen at me! It's not my fault you were sacked.

vibes

atmosphere, feelings

Example:

I've got bad vibes about the new boss.

vicous circle

a group of actions with prgressively worse results

Example:

Their relationship has developed into a vicious circle of insults.