Jarrod Bowen blasted an "embarrassing" display, after West Ham's "criminal" defending saw them humiliated by Newcastle last night.
The Hammers were looking to continue their recent good home run with a statement victory that would have seen them climb to 12th, but were blown away by Eddie Howe's Champions League-chasing side.
A string of individual errors cost the Hammers dear, as Callum Wilson and Joelinton each scored twice in a 5-1 thrashing that leaves David Moyes's men outside the relegation zone on goal difference.
"It's an embarrassing performance at the end of the day, there's nothing positive to take out of it," a furious Bowen said.
"It was a massive game coming off [beating Southampton on] Sunday, so it is disappointing. We've got to feel that it hurts, we have another game on Saturday [at Fulham], so we have to turn hurt into joy. It's too late in the season to brush things under the carpet. We are in this position and have to face it head on."
The Hammers trailed 2-0 inside 15 minutes, but responded well to battle back into the game through Kurt Zouma's header shortly before half-time, only for Nayef Aguerd's mistake to gift Newcastle a third seconds after the restart. Substitute Alexander Isak punished another clanger from Lukas Fabianski, before Joelinton's 90th-minute fifth put the seal on Moyes's misery.
"We started well, but then conceded two easy goals," Bowen added. "We shot ourselves in the foot against a team fighting for top four. The position we are in, we can't give away these easy goals. These fans demand so much more, and we demand not giving up. It was criminal to concede two more on top of that."
There remains a significant question mark over Moyes's future, with the Scot last night insisting he still felt backed by the club but also appearing to accept that the manner of his side's defeat could leave the owners with little choice.
Afterwards, he admitted he was "in danger", later adding: "I'm a big boy, I've left jobs at other times in the past and, if this one happens, well, then I would have to go with that." He also claimed, however, to have "no doubt they are behind me", when asked about board support.
With 10 League games to go, the Hammers retain a game in hand over all of their rivals for the drop, but that comes at Manchester City next month, while Arsenal, Liverpool and Manchester United are still to visit the London Stadium.
