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.
1 Do-it-yourself replacement of a leaking toilet shutoff valve typically costs $10-$25 for new parts; requires no special tools or skills; and usually takes 1-2 hours. 2  Broken or failing parts inside the tank (like a fill valve, flapper, ball cock or tank lever) may cause a toilet to run continuously.