The Toffees boss described the harrowing 4-0 loss on Wednesday night as "an impossible experience".
Everton manager Roberto Martinez has given a brutally honest and no-holds-barred account of the club's atrocious 4-0 defeat to Liverpool in the Merseyside derby on Wednesday night, as quoted by BBC Sport.
Though Jurgen Klopp's side always looked by far the more likely to score, the Toffees were at least holding their own for the majority of the first half until their resistance was broken with two goals in the space of a few minutes from Divock Origi and Mamadou Sakho.
Ramiro Funes Mori was sent off early in the second half for a nasty challenge on Origi, and from then on it was completely one-way traffic, with the hosts running in two more goals from Daniel Sturridge and Philippe Coutinho.
Martinez, who rarely struggles to find something positive to take from a match, sounded a broken man in his post-match media briefing, admitting that the result was a "disaster" which left "a feeling of embarrassment" for he and his side.
The Spanish boss said, as quoted by BBC Sport: "It was a disaster, a horrible showing that started with the best intentions but ended up with the inability to get the basics right. We forgot to defend the box and gave them a soft two-goal lead.
"We got emotional with the red card and from then on Gareth Barry was injured and John Stones was ill, it was a chain reaction. A disaster. An impossible experience. The top and bottom is that we didn't cope with the emotions of the occasion. A feeling of embarrassment.
"We will be hurting for a long, long time but we need to react quickly for the [FA Cup] game on Saturday. We are strong enough to react but we are short at centre-back now."
For Martinez, this defeat will increase tenfold the pressure he has been under in recent months from supporters after another poor season.
The Toffees look set to record back-to-back bottom-half finishes for the first time in a decade-and-a-half, and after such a harrowing performance and result on such a big stage, the questions surrounding his future will only intensify.
Martinez must somehow attempt to pick his players back up for the biggest match of their season on Saturday, the FA Cup semi-final against Manchester United at Wembley.