traps where the picture isnt obvious at first glance that its a boy, or it is only obvious because the trap is showing off
also, welcome is anything where the other person doesnt realize it is a boy that the are fucking
No it's not.
A trap is someone who's passable as a girl if you don't show their penis.
Crossdressing is an act. Both traps and non-passable boys do it.
OP obviously mean a trap that being subtle about showing their penis.
E.g. and obvious trap is a person who is passable without showing their penis, but who you know is obviously a trap since you can see their penis.