denialservice

noun
UK /dɪˈnaɪəl ˈsɜːvɪs/
US /dɪˈnaɪəl ˈsɜːrvɪs/

A denial service is when many computers are made to bother one computer so much that it stops working for everyone.

The game website went down because of a denial service attack.


OTHER MEANINGS

2. A refusal to provide something that was requested.

The company's denial service of the refund upset the customer.

3. A formal statement that something is not true.

The office issued a denial service about the rumor.

4. A help desk that turns down requests it cannot handle.

The denial service told him to call a different department.