Someone insignificant, stupid, silly or idiot. The word can be used among friends who like to call each other the mentioned names, not necessarily with the intention to offend each other. However, the same word can be used to vent about someone who did something bad to us.
Pendejo: My boss is a "pendejo" for letting us leave early with so much work we had pending at the office. You're such a valuable woman, your ex is such a "pendejo" for leaving you.
by Crisace October 25, 2017
Get the Pendejomug. A substitute teacher(most commonly an English one) that looks and sometimes performs acts of stupidity to a certain degree. Even if he may not be stupid or mentally hindered in some way he may still look as if he is.
-''That English substitute teacher asked for my name 3 times and always got it wrong or forgot it"
-"He's such a pendejo!"
-"He's such a pendejo!"
by SiFrioles May 19, 2018
Get the Pendejomug. A substitute teacher(most commonly an English one) that looks and sometimes performs acts of stupidity to a certain degree. Even if he may not be stupid or mentally hindered in some way he may still look as if he is.
-''That English substitute teacher asked for my name 3 times and always got it wrong or forgot it"
-"He's such a pendejo!"
-"He's such a pendejo!"
by SiFrioles May 19, 2018
Get the pendejomug. (n.) someone who out of selfishness or ignorance engages in activity that he would be excluded from by the result of a test whose results are pending.
Joe came to the party even though he just had a COVID test. I don't know whether he's dumb or rotten but either way he's a pendejo.
by wrdsmifma February 4, 2021
Get the PENDEJOmug. 
Get the Pendejomug. Its a term of endearment
by the bookworm with fire November 19, 2017
Get the Pendejo(a)mug. by Titomosquito June 4, 2022
Get the Pendejomug.