What does “cojonudo” mean in Spain?

Cojonudo is peak Spain-from-Spain slang for “fantastic,” “brilliant,” “top-notch.” It’s built on cojón (a vulgar word for “testicle”) plus the augmentative -udo, so while it’s wildly common in casual Peninsular speech, it is genuinely coarse — not one for a job interview. Hearing va cojonudamente bien (“it’s going bloody brilliantly”) in the adverb form is a dead giveaway you’re listening to Spanish from Spain.

The cojones word-family is a whole register of Peninsular emphasis: tener cojones (to have guts), me importa un cojón (I couldn’t care less), de cojones (as an intensifier). In the River Plate and Colombia, cojonudo can instead mean “gutsy/brave.” The clip is the singer David Bisbal on a Spanish TV show; he reacts to a request with ahí va cojonudamente bien — pure, relaxed Peninsular register.