/Sounds like "ma" (as in "mama") + "ma" + "deh" + "ra" + "deh" + "ga" (as in "garage") + "yo"/
A joke taken too far, a prank, or someone messing with you. In Colombia and Venezuela, when someone is doing a mamadera de gallo, they're pulling your leg or not taking you seriously, and it's gone past being funny into being annoying. Literally translates to "rooster sucking," which makes zero sense but that's slang for you.
"Dejá la mamadera de gallo y ponete serio que esto es importante. -> Stop messing around and get serious, this is important."
"¿Eso es en serio o es mamadera de gallo? -> Is that for real or are you just messing with me?"
/Sounds like "ma" (as in "mama") + "ma" + "deh" + "ra" + "deh" + "ga" (as in "garage") + "yo"/
A joke taken too far, a prank, or someone messing with you. In Colombia and Venezuela, when someone is doing a mamadera de gallo, they're pulling your leg or not taking you seriously, and it's gone past being funny into being annoying. Literally translates to "rooster sucking," which makes zero sense but that's slang for you.
"Dejá la mamadera de gallo y ponete serio que esto es importante. -> Stop messing around and get serious, this is important."
"¿Eso es en serio o es mamadera de gallo? -> Is that for real or are you just messing with me?"