to believe that things you want will happen, when really they are impossible.

Anyone who thinks this project will be finished within six weeks is living in cloud-cuckoo land.

• usher someone in
• vanish into thin air
• vanish off the face of the earth
• Variety is the spice of life.
• vent spleen
• vent your spleen
• verbal diarrhoea
• very much so
• very well
• vicious circle
• villain of the piece
• voice in the wilderness
• volte-face
• vote with feet
• vote with your feet
• vouch for
• vouch for something
• wade into
• wade into something
• wade through
• wade through something
• waifs and strays
• wait a minute
• wait and see
• wait a second