In Yakuza 6, former idol Haruka is looking at an online article about how, as a surrogate daughter of a yakuza, she was spotted in an orphanage in Okinawa.
One of the comments on the article says "だれか凸お願いします♪". I'm wondering what 凸 is supposed to mean here? I have a feeling it's some kind of internet slang.
Here's a picture for context:
It means to contact directly. More specifically, to make a phone call, make a visit, talk to. It derives from identifying 突{とつ}撃 and 凸{とつ}.
The usage of 突撃 means an 'attack' in a figurative sense: abruptly being talked to or called by unknown people is considered sort of aggressive. More traditionally, on TV, 突撃レポート means a reporter making unexpected visits to someone or talking to people on the street (supposedly without appointments etc.).
People doing 凸 are sort of paparazzi. It looks like the particular sentence says 'Please someone visit there in person (and tell me what happens)'.
