Could you explain? Never been exposed to fraternities or Google.

Ritualistic hazing of newcomers is a large part of american "frat" culture.

What the parent is likely referring to is: Things like "Wearing the noogler hat" or the hoops you jump through in interview (that have nothing to do with the job) are similar in spirit to some university fraternities admission processes, or are depicted as such in media.

Yes, also the latent class filtering, and the general "coked-up fratbro" behaviors, like enthusiastically and energetically pursuing ideas that make no sense. (No sense includes hiring for people who obsessively focus their time on memorizing and rehearsing for the rituals to get into that one frat.)