Pendejo is a vulgar Spanish-language term of abuse. To call a person a pendejo is essentially to call him stupid, although it also carries implications of wilful stubbornness and rank ineptitude.
A toilet may run periodically due to a problem with the flapper, the flapper seal, the flapper chain or a high float.
A Running Toilet is a Wasteful Toilet. According to the EPA, an average of 200 gallons of water can be wasted every day by a running toilet. Sometimes you can have a small leak that only wastes about 30 gallons of water a day, however, these leaks are more difficult to detect and therefore can last longer.