‘The F-14 Tomcat like a few other aircraft was capable of a “dump and burn” just like the F-111. They both had the fuel dump mast located in between the two engines.

Therefore if the afterburners were lit while dumping fuel, that fuel would be torched in a long and fiery stream.

https://theaviationgeekclub.com/naval-aviator-recalls-f-14-pilot-mistakenly-doing-dump-and-burn-on-takeoff-tower-complimented-him-because-controllers-thought-he-put-on-private-airshow-for-them