Heckles are an illegitimate, yet common way of commenting directly and immediately on what is being said at the lectern. However, (non-)verbal interjections can also be used to disconcert the speaker, thus scoring points within the parliamentary arena. In these cases, female delegates are often confronted with discriminatory remarks and comments that border on sexism and even misogyny. Based on the extensive literature on gender and discourse, the following paper will focus on gender-related heckles and analyse argumentative structures and topoi that are grounded in sexist stereotypes and conservative role-models. Presuming that these incidents are not isolated instances, the paper will compare and contrast several examples from around the world that have caught public attention.