Hello all. I've been reading a lot of naval history lately and am running across the phrase "Three cheers and a tiger" quite often. If the crew of a ship was giving their captain "three cheers", for example, they also gave him a "tiger" after the cheers. I get the sense that this is a phrase originating in BE. Having checked with Dr. Google, he tells me that it is a "noise/growl/screech" that is performed after the cheers. Can anyone elaborate on what this noise is and what the origin of the term is?