thish

As an adjective shish

is on a skewer.

As a noun thish is

(dated|fandom slang).

As nouns the difference between thish and phish

is that thish is (dated|fandom slang) while phish is an instance of a phishing attack.

As a verb phish is

to engage in phishing.

As nouns the difference between thish and whish

is that thish is (dated|fandom slang) while whish is a sibilant sound, especially that of rapid movement through the air.

As an interjection whish is

.

As a verb whish is

to make such a sound.

As nouns the difference between thigh and thish

is that thigh is the upper leg of a human, between the hip and the knee while thish is (dated|fandom slang).

As a determiner this

is .

As a noun thish is

(dated|fandom slang).