a lot of jws have "gatherings" at Christmas. They don't call them parties,
Have you ever known them to call any gathering a "party"? Being raised in it and living with it as an adult, the word "party" was almost never used when it came to witness gatherings. In fact a lot of them used the word "gathering" when having people over.
"We're having some friends over for cards and Bible (drinking) games. Wanna come?" No mention of party. Then as word spreads, "Did you hear that undercover was having a 'gathering' at his house?" "Are you going to go to the 'get-together' at undercover's house?" Then afterwards, "Wow, we sure had fun at the get-together the other night" or "Brother undercover? The other elders and I would like to discuss with you the goings-ons at a 'gathering' that you had the other night".
Sometimes the get-together coordinater (party thrower) would ask other dubs to bring food so now the "party" became a "picnic". The congregation used to have "congregation picnics" until the WTS put the kabash on that. So then they were unsanctioned "picnics". Over time those dwindled until people started having more private "gatherings" and "get-togethers".
Only the young were still innocent enough to have "parties". But once they hit pioneer/MS age, they too had succombed to the WTspeak of calling groups of people having fun "gatherings" or "get-togethers".