Blow a kiss
It floats away in the air between 2 people.
(lost)
Blow hole
On a whale/dolphin, the need for air before diving back down in to the unknown deep.
(without air)
Blow fish
 Is a highly prized delicacy both as sashimi or soup but also is highly poisonous with no know antidote
(like emotions)
Blow off
When, completely not interested
Blow Pass
Without seeing at all
(#NuffSaid)

Issa- reading between the ( )