Short version: they looked a lot more like 
than 
. Most accounts of Vikings that are contemporary of the centuries where shield-Danes and spear-Danes went "a-Viking" describe distinctly hygenic people that bathed and took care of their hair (and wore it long).
EDIT: I thought I could have a little fun with a very loosely associated Beowulf reference to Danes (and even more loose associations with Geats therein too) but I got the 
experience for doing so. 
They didn't have Hitler Youth fades with lazy and sloppy beard fusions. Period. Full stop. Stop doing that. Looking right the fuck at you too, P R E S T I G E T V. 
From what I understand yeah basically, thats also why that one translation I mentioned just straight up renders that one specific insult as "gay", because it has the connotation of unmasculinity/femininity/submissiveness.
I recall reading that it got some negative responses from other translators/historians because it comes off as pretty juvenile in some parts to have the gods just call each other gay, probably a "better" word to translate it to would be the gay slur, in terms of actually translating the level of offense intended with the insult, but I guess as a serious translator you arent really allowed to make the gods call each other f*ggots.
But yeah it was really serious to call another man that insult, IIRC it was justification for demanding a judicial duel, or even murder.