Person A: 'Hey, did you get with my girl last night?'
Person B: 'Nah you're my mate, that'd be peak'
Person A: 'Say mums'
Person B: 'Mums'
Person A: 'Alright, safe g'
If you say something and someone thinks you're lying, they'll say "say mums" and that means if you're lying, something happens to your mum. some people, like me, don't believe in this.
Person 1: Oh yeah my dad got robbed yesterday
Person 2: nah rubbish, say mums!
person 1: mums
person 2: oh DAMN
If you are ugly, have no friends, and cannot adequately conduct yourself in social situations, then you will seek out acceptance via non-personal forms of communication to construct a facade to dupe passers-by that you do have friends based on the number of vibrations one receives after sending multiple short messages hoping for the same number of responses, ergo the same number of vibrations-an audible symbol many associate with friendship.