Place this clip at the very end of a confession or story segment, after the reaction has peaked, then follow it with Oh My God Wow before cutting to Eww Brother Eww for the disgusted closer that sells the whole sequence.
About this sound
This is a two-second spoken clip in Portuguese, with a male voice delivering Ernane's crude line about ejaculating inside a grandma. It lands as deliberately shocking and awkward, built for uncomfortable laughter rather than a subtle reaction, and the bluntness of the wording is the whole effect.