Rangers, trailing 2-0 going into nine minutes of stoppage time, pulled one back through Conor Washington and then laid siege to the Fulham goal.
Former Cottagers striker Matt Smith had a header cleared off the line – and then goalkeeper Alex Smithies somehow nodded wide from in front of goal.
Rangers boss Holloway revealed: “The boys are calling him Toblerone head after that. I wouldn’t have sent him up if I’d known that!
“It’s quite a surreal feeling when you see your team still fighting and the chances coming, and we would have got at least what we deserved, a point.”
Rangers trailed at half-time to an own-goal by defender Jack Robinson, who deflected in a shot from Ryan Fredericks.
Then, with seven minutes remaining, Fulham were awarded a penalty after Rui Fonte went down under Joel Lynch’s challenge, but the Portuguese forward lifted the spot-kick over.
However, just two minutes later, Stefan Johansen’s strike helped extend an unwanted record for the hosts, who have now lost the last 11 matches they have played on a Friday.
“The disappointing thing was the second goal, just after they missed a penalty – and justice was done there, no one was was near him,” added Holloway.
“But after that, they broke again and when that ball got squared, how can we have two touches on the edge of our area, just after they’ve missed a penalty?
“We kept going and we should have got a point out of that. But such is life.”