gatecrash

verb

1. To attend a social event without having been invited, or without having paid.

   ““[…] I mean, she doesn’t belong to the Society—“ ”What Society?” ”The Society that was meeting. I think she pushed in for a joke.” ”Gate-crashed you? […]””

   “After Walsh was seen being escorted out as he attempted to gatecrash the interview, liberal viewers shared their outrage at Walsh's mocking of their convention.”

noun

1. (uncountable, usually)An instance of gatecrashing a party, event, etc.
2. (uncountable, usually)Part of a traditional Chinese wedding ceremony in which the groom and his groomsmen complete several difficult or embarrassing tasks prepared by the bridesmaids to prove his love for the bride.

   “We’ve heard of stories of grooms getting nervous before their big day – not because they’re afraid of botching their vows, or welling up in unmanly but happy tears – but because of the tasks that await them during the gatecrashing ceremony.”

   “For their wedding day, Mr Koh, who's 33 and works in marketing, arrived at his bride's house for the gatecrashing ceremony wearing a Darth Vader mask, while his groomsmen were decked out in Jedi robes.”

   “During the 30-minute gatecrash, Mr Lee and his groomsmen did challenges such as forming a human pyramid and dancing to pop tunes such as Britney Spears' Toxic.”

   “Madam Quek says: "Because my husband and most of the groomsmen are not Chinese, it was their first time experiencing a Chinese wedding gatecrash."”