咁應該講返 我係跨仔啦
I'm a cross-dresser, you know.

Cantonese Sentence Breakdown

咁 gam3
so (Cantonese)
Mandarin equivalent: 这样zhèyàng [这样], like this
應該 jing1 goi1
should
講返 gong2 faan1
talk back
我 ngo5
I
me
my
us
we
our
self
係 hai6
(Cantonese) to be
to connect
to relate to
to tie up
to bind
to be (literary)
to involve
relation
relationship
consequence
yes
indeed
right
跨 kwaa3
to step across
to stride over
to straddle
to span
to bestride
to ride
to carry
to cut across
to go beyond
仔 zi2
meticulous
啦 la5
“now”, with an connotation of doubt
surprise
disapproval