Ni lava ni presta la batea.

He is a dog in the manger.

She is a dog in the manger.

A dog in the manger attitude/policy.

A dog in the manger: someone who keeps something that they do not want in order to prevent someone else from getting it.

Cambridge Dictionary Online. 

In News:

"Does this all look like the dog in the manger policy of the privileged few?"
Moneylife Personal Finance site and magazine.

In English:; Llave de paso. (de agua)

How to call a valve in a pipe which controls the flow of liquid through it.
Cambridge Dictionary Online

Stopcock

A stopcock is cock for stopping or regulating flow (as through a pipe) .
Merriam Webster Online.

In News:

"“All we could do was to try and turn the water off to the entire block and the property. We were unable to do this because the stopcock had broken."
Southend Standard.

"At about 2.30am, the property in Hambro Avenue went under water after the stopcock had broken."
Echo.

In French       En francais       En francés

Robinet d’arrêt.
Collins Dictionary

Cobrar el paro.

To collect unemployment benefits/insurance/payment, to collect unemployment.

In News:

"Elected official accused of illegally collecting unemployment."

NBC

"An attorney we spoke with says it's in the code of ethics and it's Florida law - if you're a public official, you're not considered employed, which means you're not entitled to collect unemployment."

NBC

"Starting July 7, the maximum number of weeks Nevadans can collect unemployment extended benefits will be reduced from 99 weeks"

KRNV My News

Cobrar paro forzoso en inglés in English.