Blaeh
Deriving from both, this word merges the typical "blah" and "bleh" expressions used to describe a persons lack of interest, boredom, and/or "whatever" feeling. "Blaeh" can be used when messaging a friend to describe an unexcited feeling or when one has run out of things to say/ is bored enough to reduce his or herself to nonsensical words.
Girl: "lol"
Boy: ....
*Minutes later*
Boy: "blaeh"
Girl: "blaeh, haha, how was your day?"
Boy: "Blaeh"
Girl: "Why blaeh?"
Boy: "Well not much happened, and it was pretty boring"
Boy: ....
*Minutes later*
Boy: "blaeh"
Girl: "blaeh, haha, how was your day?"
Boy: "Blaeh"
Girl: "Why blaeh?"
Boy: "Well not much happened, and it was pretty boring"