In text slang, "lmcbw" stands for "laughing my (expletive) off, can't breathe, why?" It's used to express that something is extremely funny to the point of being unable to breathe from laughter. The abbreviation combines humor with a sense of urgency or disbelief.
Miss You!
gtk
lpl
. On My Way
penis
Text You Back
make love to me
Did not laugh/does not like
you take care :)
Thanks In Advance
Before You Leave
No big Deal!