TuTu is usually made by a Derek, Dez or Dezza, however, it has been known to spill out onto friends that are close to him, and it has been known to affect Trevs .
In laymans terms, its when you text, call or ask a Derek/Dezza/Dez a question, or even say something which requires a response and to recieve nothing, however, it is responded to, in said Derek/Dezza/Dez's own time.
Average response time is usually 5 days
Longest known response time was, 7 weeks.
TuTu'd:: I asked him last week, but he's tutu'd me
TuTu'ing: I asked him yesterday, but i think he TuTu'ing me.
John: Emma is wearing a tutu. She's not a ballerina, so that means she must be a cool person. I wish I had a tutu.
Passerby: Don't we all.